{"id":18764,"date":"2026-07-21T11:36:36","date_gmt":"2026-07-21T11:36:36","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=18764"},"modified":"2026-07-21T11:36:36","modified_gmt":"2026-07-21T11:36:36","slug":"css-aspect-ratio","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/css-aspect-ratio\/","title":{"rendered":"CSS aspect-ratio\u306e\u4f7f\u3044\u65b9\uff5c\u753b\u50cf\u3084\u52d5\u753b\u306e\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3092\u5d29\u3055\u305a\u4fdd\u3064\u65b9\u6cd5"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Web\u30da\u30fc\u30b8\u306b\u753b\u50cf\u3084\u52d5\u753b\u3092\u914d\u7f6e\u3059\u308b\u3068\u304d\u3001\u300c\u7e26\u6a2a\u6bd4\u3092\u5d29\u3055\u305a\u56fa\u5b9a\u3057\u305f\u3044\u300d\u300c\u30b9\u30de\u30db\u3067\u308216:9\u3092\u30ad\u30fc\u30d7\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u60a9\u307f\u306f\u8ab0\u3067\u3082\u4e00\u5ea6\u306f\u7d4c\u9a13\u3059\u308b\u306f\u305a\u3067\u3059\u3002\u304b\u3064\u3066\u306fCSS\u4e2d\u7d1a\u8005\u3067\u306a\u3051\u308c\u3070\u6271\u3048\u306a\u304b\u3063\u305f\u7e26\u6a2a\u6bd4\u306e\u56fa\u5b9a\u3067\u3059\u304c\u3001\u73fe\u4ee3\u306eCSS\u306b\u306f <code>aspect-ratio<\/code> \u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u7528\u610f\u3055\u308c\u3066\u304a\u308a\u3001\u305f\u3063\u305f1\u884c\u3067\u89e3\u6c7a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001CSS\u306e <code>aspect-ratio<\/code> \u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3063\u305f\u7e26\u6a2a\u6bd4\u306e\u56fa\u5b9a\u65b9\u6cd5\u3092\u3001\u521d\u5fc3\u8005\u3067\u3082\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u57fa\u790e\u304b\u3089\u4e01\u5be7\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u5f93\u6765\u306e\u300cpadding\u30cf\u30c3\u30af\u300d\u3068\u547c\u3070\u308c\u308b\u53e4\u3044\u624b\u6cd5\u3068\u306e\u6bd4\u8f03\u3001\u3088\u304f\u4f7f\u3046\u6bd4\u7387\u306e\u65e9\u898b\u8868\u3001\u753b\u50cf\u30fbYouTube\u52d5\u753b\u30fbiframe\u3078\u306e\u5b9f\u8df5\u7684\u306a\u9069\u7528\u65b9\u6cd5\u307e\u3067\u3001\u4f53\u7cfb\u7684\u306b\u5b66\u3079\u307e\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u307e\u305f\u300c<code>aspect-ratio<\/code>\u3092\u6307\u5b9a\u3057\u305f\u306e\u306b\u52b9\u304b\u306a\u3044\u300d\u3068\u3044\u3046\u30c8\u30e9\u30d6\u30eb\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u3082\u307e\u3068\u3081\u3066\u3044\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u72b6\u6cc1\u3068\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u5b9f\u88c5\u3082\u30ab\u30d0\u30fc\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u5b9f\u52d9\u306b\u3059\u3050\u4f7f\u3048\u308b\u77e5\u8b58\u304c\u8eab\u306b\u3064\u304d\u307e\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u8a18\u4e8b\u3092\u8aad\u307f\u7d42\u3048\u305f\u3068\u304d\u3001\u3042\u306a\u305f\u306f\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u306b\u304a\u3051\u308b\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u306e\u6271\u3044\u306b\u5b8c\u5168\u306b\u81ea\u4fe1\u304c\u6301\u3066\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u306f\u305a\u3067\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\"><strong>\u3053\u306e\u8a18\u4e8b\u306e\u7d50\u8ad6<\/strong><\/p>\n<ul class=\"wp-block-list\"><li><code>aspect-ratio: \u5e45 \/ \u9ad8\u3055;<\/code> \u306e1\u884c\u3067\u7e26\u6a2a\u6bd4\u3092\u56fa\u5b9a\u3067\u304d\u308b<\/li><li>\u53e4\u3044padding\u30cf\u30c3\u30af\uff08<code>padding-top: 56.25%<\/code>\uff09\u306f\u4e0d\u8981\u306b\u306a\u3063\u305f<\/li><li><code>object-fit: cover<\/code> \u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u753b\u50cf\u3092\u6b6a\u307e\u305b\u305a\u30c8\u30ea\u30df\u30f3\u30b0\u3067\u304d\u308b<\/li><li>\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306f\u5168\u5bfe\u5fdc\u6e08\u307f\u3002\u53e4\u3044\u74b0\u5883\u5411\u3051\u306b\u306f <code>@supports<\/code> \u3067\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u7528\u610f\u3059\u308c\u3070\u3088\u3044<\/li><\/ul>\n<h2 class=\"wp-block-heading\">aspect-ratio\u3068\u306f\uff1f\u7e26\u6a2a\u6bd4\u3092\u6307\u5b9a\u3059\u308bCSS\u30d7\u30ed\u30d1\u30c6\u30a3<\/h2>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u306fCSS Box Sizing Level 4\u4ed5\u69d8\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3001\u8981\u7d20\u306e\u5e45\u3068\u9ad8\u3055\u306e\u6bd4\u7387\uff08\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\uff09\u3092\u6307\u5b9a\u3057\u307e\u3059\u3002\u5e45\u304c\u5909\u308f\u308b\u3068\u9ad8\u3055\u304c\u81ea\u52d5\u3067\u8ffd\u5f93\u3057\u3001\u7e26\u6a2a\u6bd4\u3092\u5e38\u306b\u4e00\u5b9a\u306b\u4fdd\u3061\u307e\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u69cb\u6587\u306f\u975e\u5e38\u306b\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.box {\n  aspect-ratio: 16 \/ 9;\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u4e0a\u8a18\u306e\u3088\u3046\u306b\u66f8\u304f\u3068\u3001\u8981\u7d20\u306e\u5e45\u306b\u5bfe\u3057\u3066\u9ad8\u3055\u304c 9\/16 = 56.25% \u306e\u6bd4\u7387\u306b\u81ea\u52d5\u8abf\u6574\u3055\u308c\u307e\u3059\u3002\u30b9\u30e9\u30c3\u30b7\u30e5\uff08<code>\/<\/code>\uff09\u306e\u524d\u304c\u5e45\u306e\u6bd4\u7387\u3001\u5f8c\u308d\u304c\u9ad8\u3055\u306e\u6bd4\u7387\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">aspect-ratio\u306b\u6307\u5b9a\u3067\u304d\u308b\u5024<\/h3>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u306f\u6b21\u306e\u3088\u3046\u306a\u5024\u3092\u6307\u5b9a\u3067\u304d\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u5024\u306e\u5f62\u5f0f<\/th><th>\u4f8b<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u6570\u5024 \/ \u6570\u5024<\/td><td><code>16 \/ 9<\/code><\/td><td>\u5e45\u3068\u9ad8\u3055\u306e\u6bd4\u3092\u6574\u6570\u307e\u305f\u306f\u5c0f\u6570\u3067\u6307\u5b9a<\/td><\/tr><tr><td>1\u3064\u306e\u6570\u5024<\/td><td><code>1<\/code><\/td><td>\u6b63\u65b9\u5f62\uff081\/1\u3068\u540c\u7fa9\uff09<\/td><\/tr><tr><td>auto<\/td><td><code>auto<\/code><\/td><td>width\/height\u5c5e\u6027\u304b\u3089\u6bd4\u7387\u3092\u5c0e\u51fa\uff08img\u8981\u7d20\u306a\u3069\uff09<\/td><\/tr><tr><td>auto + \u6bd4\u7387<\/td><td><code>auto 16 \/ 9<\/code><\/td><td>\u56fa\u6709\u6bd4\u7387\u304c\u3042\u308c\u3070\u305d\u3061\u3089\u3092\u512a\u5148\u3001\u306a\u3051\u308c\u3070\u6307\u5b9a\u5024\u3092\u4f7f\u7528<\/td><\/tr><\/tbody><\/table><\/figure>\n<p class=\"wp-block-paragraph\">\u6700\u3082\u4f7f\u7528\u983b\u5ea6\u304c\u9ad8\u3044\u306e\u306f <code>16 \/ 9<\/code> \u3084 <code>4 \/ 3<\/code> \u306e\u3088\u3046\u306a\u6574\u6570\u6bd4\u3067\u3059\u3002\u30b9\u30e9\u30c3\u30b7\u30e5\u3092\u7701\u7565\u3057\u3066 <code>aspect-ratio: 1<\/code> \u3068\u66f8\u304f\u3068\u6b63\u65b9\u5f62\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">aspect-ratio\u304c\u7e26\u6a2a\u6bd4\u3092\u4fdd\u3064\u4ed5\u7d44\u307f<\/h3>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u8981\u7d20\u3067\u3001\u7247\u65b9\u306e\u5bf8\u6cd5\uff08\u4f8b\u3048\u3070 <code>width<\/code>\uff09\u304c\u6c7a\u307e\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u3082\u3046\u7247\u65b9\u306e\u5bf8\u6cd5\u3092\u81ea\u52d5\u8a08\u7b97\u3057\u307e\u3059\u3002\u89aa\u8981\u7d20\u306e\u5e45\u3044\u3063\u3071\u3044\u306b\u5e83\u304c\u308b <code>div<\/code> \u306b\u5bfe\u3057\u3066 <code>aspect-ratio: 16 \/ 9<\/code> \u3092\u6307\u5b9a\u3057\u305f\u5834\u5408\u3001\u89aa\u5e45\u304c 1200px \u306a\u3089\u9ad8\u3055\u306f\u81ea\u52d5\u3067 675px\uff08= 1200 \u00d7 9\/16\uff09\u306b\u306a\u308a\u307e\u3059\u3002\u89aa\u5e45\u304c 600px \u306b\u7e2e\u3093\u3067\u3082\u9ad8\u3055\u306f 337.5px \u306b\u8ffd\u5f93\u3057\u307e\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4ed5\u7d44\u307f\u306b\u3088\u308a\u3001\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u3067\u7e26\u6a2a\u6bd4\u3092\u4fdd\u3063\u305f\u307e\u307e\u8981\u7d20\u3092\u30b9\u30b1\u30fc\u30ea\u30f3\u30b0\u3067\u304d\u307e\u3059\u3002\u5f93\u6765\u306f\u8907\u96d1\u306aCSS\u30cf\u30c3\u30af\u304c\u5fc5\u8981\u3060\u3063\u305f\u3053\u306e\u51e6\u7406\u304c\u3001\u30d7\u30ed\u30d1\u30c6\u30a31\u3064\u3067\u5b9f\u73fe\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u304c\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u5e45\u304b\u9ad8\u3055\u306e<strong>\u3069\u3061\u3089\u304b\u7247\u65b9<\/strong>\u304c\u78ba\u5b9a\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e21\u65b9\u304c <code>auto<\/code> \u306e\u5834\u5408\u306f\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u306e\u8a08\u7b97\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u5b9f\u969b\u306b\u306f\u591a\u304f\u306e\u5834\u5408\u3001\u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306f\u89aa\u5e45\u306b\u81ea\u52d5\u3067\u5e83\u304c\u308b\u305f\u3081\u3001\u554f\u984c\u306a\u304f\u6a5f\u80fd\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.video-wrapper {\n  width: 100%;          \/* \u5e45\u306f\u89aa\u8981\u7d20\u3044\u3063\u3071\u3044 *\/\n  aspect-ratio: 16 \/ 9; \/* \u9ad8\u3055\u306f\u81ea\u52d5\u8a08\u7b97 *\/\n  background: #000;\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u4e0a\u8a18\u306e\u3088\u3046\u306b\u6307\u5b9a\u3059\u308c\u3070\u3001\u3042\u3068\u306f\u30a6\u30a3\u30f3\u30c9\u30a6\u5e45\u304c\u4f55px\u306b\u306a\u3063\u3066\u3082\u5e38\u306b16:9\u306e\u6bd4\u7387\u3092\u4fdd\u3061\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u5f93\u6765\u306epadding\u30cf\u30c3\u30af\u3068\u306e\u6bd4\u8f03<\/h2>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u304c\u767b\u5834\u3059\u308b\u4ee5\u524d\u3001\u7e26\u6a2a\u6bd4\u3092\u56fa\u5b9a\u3059\u308b\u305f\u3081\u306e\u5b9a\u756a\u30c6\u30af\u30cb\u30c3\u30af\u304c\u300cpadding\u30cf\u30c3\u30af\uff08padding-top \u30cf\u30c3\u30af\uff09\u300d\u3067\u3057\u305f\u3002\u3053\u308c\u306f <code>padding-top<\/code> \u307e\u305f\u306f <code>padding-bottom<\/code> \u306b\u30d1\u30fc\u30bb\u30f3\u30c8\u5024\u3092\u6307\u5b9a\u3059\u308b\u3068\u3001<strong>\u89aa\u8981\u7d20\u306e\u5e45\u306b\u5bfe\u3059\u308b\u5272\u5408<\/strong>\u3067\u8a08\u7b97\u3055\u308c\u308b\u3068\u3044\u3046\u4ed5\u69d8\u3092\u5229\u7528\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\">16:9\u306e\u6bd4\u7387\u3092\u5b9f\u73fe\u3059\u308b\u306b\u306f <code>9 \u00f7 16 = 0.5625<\/code>\u3001\u3064\u307e\u308a <code>56.25%<\/code> \u3092padding\u306b\u6307\u5b9a\u3057\u307e\u3059\u3002\u9ad8\u3055\u30920\u306b\u3057\u3066\u3001padding\u3067\u300c\u898b\u304b\u3051\u306e\u9ad8\u3055\u300d\u3092\u4f5c\u308a\u51fa\u3059\u3001\u3068\u3044\u3046\u30c8\u30ea\u30c3\u30ad\u30fc\u306a\u624b\u6cd5\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">padding\u30cf\u30c3\u30af\u306e\u5b9f\u88c5<\/h3>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u25a0 padding\u30cf\u30c3\u30af\uff08\u53e4\u3044\u624b\u6cd5\uff09 *\/\n\n\/* \u5916\u5074\u306e\u30e9\u30c3\u30d1\u30fc *\/\n.video-wrapper {\n  position: relative;\n  width: 100%;\n  padding-top: 56.25%; \/* 9 \u00f7 16 \u00d7 100 = 56.25% *\/\n  height: 0;           \/* \u9ad8\u3055\u306f0\u306b\u3059\u308b *\/\n  overflow: hidden;\n}\n\n\/* \u5185\u5074\u306e\u8981\u7d20\u3092\u7d76\u5bfe\u914d\u7f6e\u3067\u5f15\u304d\u4f38\u3070\u3059 *\/\n.video-wrapper iframe,\n.video-wrapper video {\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u3053\u306e\u30b3\u30fc\u30c9\u3092\u898b\u305f\u3060\u3051\u3067\u300c\u30cf\u30c3\u30af\u300d\u3068\u547c\u3070\u308c\u308b\u7406\u7531\u304c\u308f\u304b\u308a\u307e\u3059\u3002<code>height: 0<\/code> \u306b\u3057\u305f\u3046\u3048\u3067 <code>padding-top<\/code> \u3067\u7591\u4f3c\u7684\u306b\u9ad8\u3055\u3092\u4f5c\u308a\u51fa\u3057\u3001\u5b50\u8981\u7d20\u3092 <code>position: absolute<\/code> \u3067\u914d\u7f6e\u3059\u308b\u3002\u76f4\u611f\u7684\u3067\u306a\u304f\u3001\u7406\u89e3\u3059\u308b\u306e\u306b\u6642\u9593\u304c\u304b\u304b\u308b\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">aspect-ratio\u3092\u4f7f\u3063\u305f\u5b9f\u88c5<\/h3>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u25a0 aspect-ratio\u3092\u4f7f\u3063\u305f\u73fe\u4ee3\u7684\u306a\u624b\u6cd5 *\/\n\n.video-wrapper {\n  width: 100%;\n  aspect-ratio: 16 \/ 9;\n}\n\n.video-wrapper iframe,\n.video-wrapper video {\n  width: 100%;\n  height: 100%;\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u30b3\u30fc\u30c9\u91cf\u304c\u534a\u5206\u4ee5\u4e0b\u306b\u306a\u308a\u3001\u610f\u56f3\u3082\u4e00\u76ee\u3067\u308f\u304b\u308a\u307e\u3059\u3002<code>position: absolute<\/code> \u3084 <code>height: 0<\/code> \u3068\u3044\u3063\u305f\u30c8\u30ea\u30c3\u30af\u304c\u4e00\u5207\u4e0d\u8981\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">2\u3064\u306e\u624b\u6cd5\u306e\u6bd4\u8f03\u8868<\/h3>\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u6bd4\u8f03\u9805\u76ee<\/th><th>padding\u30cf\u30c3\u30af<\/th><th>aspect-ratio<\/th><\/tr><\/thead><tbody><tr><td>\u8a18\u8ff0\u91cf<\/td><td>\u591a\u3044\uff08\u30e9\u30c3\u30d1\u30fc\uff0b\u5b50\u8981\u7d20\u306e2\u30bb\u30c3\u30c8\uff09<\/td><td>\u5c11\u306a\u3044\uff081\u30d7\u30ed\u30d1\u30c6\u30a3\uff09<\/td><\/tr><tr><td>\u53ef\u8aad\u6027<\/td><td>\u4f4e\u3044\uff08\u610f\u56f3\u304c\u308f\u304b\u308a\u306b\u304f\u3044\uff09<\/td><td>\u9ad8\u3044\uff08\u610f\u56f3\u304c\u660e\u78ba\uff09<\/td><\/tr><tr><td>\u6bd4\u7387\u8a08\u7b97<\/td><td>\u624b\u52d5\u3067\u5272\u5408\u3092\u8a08\u7b97\u304c\u5fc5\u8981\uff089\u00f716=56.25%\uff09<\/td><td>\u6bd4\u7387\u3092\u305d\u306e\u307e\u307e\u8a18\u8ff0\uff0816\/9\uff09<\/td><\/tr><tr><td>\u5b50\u8981\u7d20\u306e\u6271\u3044<\/td><td>position: absolute \u304c\u5fc5\u8981<\/td><td>\u901a\u5e38\u306e\u30d5\u30ed\u30fc\u306e\u307e\u307e<\/td><\/tr><tr><td>\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc<\/td><td>\u307b\u307c\u5168\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc<\/td><td>\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306e\u307f\uff082021\u5e74\u4ee5\u964d\u306f\u5e83\u304f\u5bfe\u5fdc\uff09<\/td><\/tr><tr><td>\u30b3\u30f3\u30c6\u30f3\u30c4\u91cf\u306b\u3088\u308b\u5d29\u308c<\/td><td>\u5d29\u308c\u306b\u304f\u3044\uff08height\u304c0\u56fa\u5b9a\uff09<\/td><td>\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u5897\u3048\u308b\u3068\u9ad8\u3055\u304c\u5e83\u304c\u308b\u5834\u5408\u3042\u308a<\/td><\/tr><\/tbody><\/table><\/figure>\n<p class=\"wp-block-paragraph\">\u73fe\u4ee3\u306eWeb\u958b\u767a\u3067\u306f <code>aspect-ratio<\/code> \u3092\u7b2c\u4e00\u9078\u629e\u3068\u3057\u3001\u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u5411\u3051\u306b\u306e\u307fpadding\u30cf\u30c3\u30af\u3092\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066\u63d0\u4f9b\u3059\u308b\u306e\u304c\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u3059\u3002padding\u30cf\u30c3\u30af\u306e\u8a08\u7b97\u5f0f\u306f<strong>\u300c\u9ad8\u3055 \u00f7 \u5e45 \u00d7 100\u300d<\/strong>\u3067\u6c42\u3081\u307e\u3059\u30024:3\u306a\u3089 <code>3 \u00f7 4 \u00d7 100 = 75%<\/code>\u3001\u6b63\u65b9\u5f62\u306a\u3089 <code>100%<\/code> \u3067\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">aspect-ratio\u306e\u66f8\u304d\u65b9\u3068\u3088\u304f\u4f7f\u3046\u6bd4\u7387\u306e\u65e9\u898b\u8868<\/h2>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u306e\u57fa\u672c\u69cb\u6587\u3092\u6539\u3081\u3066\u78ba\u8a8d\u3057\u3001\u5b9f\u969b\u306b\u3088\u304f\u4f7f\u3046\u6bd4\u7387\u3092\u307e\u3068\u3081\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u57fa\u672c\u69cb\u6587<\/h3>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u57fa\u672c\u69cb\u6587 *\/\n.element {\n  aspect-ratio: &lt;width-ratio&gt; \/ &lt;height-ratio&gt;;\n}\n\n\/* \u5177\u4f53\u4f8b *\/\n.widescreen {\n  aspect-ratio: 16 \/ 9;  \/* HD\u52d5\u753b\u30fbYouTube\u6a19\u6e96\u6bd4\u7387 *\/\n}\n\n.square {\n  aspect-ratio: 1 \/ 1;   \/* \u6b63\u65b9\u5f62\uff081\u3068\u66f8\u3044\u3066\u3082\u540c\u3058\uff09 *\/\n}\n\n.portrait {\n  aspect-ratio: 3 \/ 4;   \/* \u7e26\u9577\u30fb\u30b9\u30de\u30db\u5411\u3051\u5199\u771f *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u3088\u304f\u4f7f\u3046\u6bd4\u7387\u306e\u65e9\u898b\u8868<\/h3>\n<p class=\"wp-block-paragraph\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u3088\u304f\u767b\u5834\u3059\u308b\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3068\u7528\u9014\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002padding\u30cf\u30c3\u30af\u3092\u4f7f\u3046\u5834\u5408\u306e\u8a08\u7b97\u5024\u3082\u4f75\u8a18\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-table\"><table><thead><tr><th>aspect-ratio\u5024<\/th><th>\u6bd4\u7387<\/th><th>\u4e3b\u306a\u7528\u9014<\/th><th>padding\u30cf\u30c3\u30af\u5024\uff08\u9ad8\u3055\u00f7\u5e45\u00d7100\uff09<\/th><\/tr><\/thead><tbody><tr><td><code>16 \/ 9<\/code><\/td><td>16:9<\/td><td>YouTube\u30fbHD\u52d5\u753b\u30fb\u30ef\u30a4\u30c9\u30b9\u30af\u30ea\u30fc\u30f3<\/td><td>56.25%<\/td><\/tr><tr><td><code>4 \/ 3<\/code><\/td><td>4:3<\/td><td>\u5f93\u6765\u306eTV\u30fb\u30d7\u30ec\u30bc\u30f3\u30b9\u30e9\u30a4\u30c9\u30fbSD\u30ab\u30e1\u30e9<\/td><td>75%<\/td><\/tr><tr><td><code>1 \/ 1<\/code><\/td><td>1:1<\/td><td>\u6b63\u65b9\u5f62\u30fbInstagram\u6295\u7a3f\u30fb\u30a2\u30a4\u30b3\u30f3<\/td><td>100%<\/td><\/tr><tr><td><code>3 \/ 2<\/code><\/td><td>3:2<\/td><td>\u4e00\u773c\u30ec\u30d5\u30ab\u30e1\u30e9\u306e\u6a19\u6e96\u6bd4\u7387\u30fb\u5199\u771f\u30ae\u30e3\u30e9\u30ea\u30fc<\/td><td>66.67%<\/td><\/tr><tr><td><code>21 \/ 9<\/code><\/td><td>21:9<\/td><td>\u30b7\u30cd\u30de\u30b9\u30b3\u30fc\u30d7\u30fb\u30a6\u30eb\u30c8\u30e9\u30ef\u30a4\u30c9\u30e2\u30cb\u30bf\u30fc<\/td><td>42.86%<\/td><\/tr><tr><td><code>3 \/ 4<\/code><\/td><td>3:4\uff08\u7e26\u9577\uff09<\/td><td>\u30b9\u30de\u30db\u7e26\u5411\u304d\u5199\u771f\u30fbPinterest\u30fb\u30dd\u30fc\u30c8\u30ec\u30fc\u30c8<\/td><td>133.33%<\/td><\/tr><tr><td><code>9 \/ 16<\/code><\/td><td>9:16\uff08\u7e26\u9577\uff09<\/td><td>TikTok\u30fbInstagram Reels\u30fb\u30b9\u30de\u30db\u52d5\u753b<\/td><td>177.78%<\/td><\/tr><tr><td><code>2 \/ 1<\/code><\/td><td>2:1<\/td><td>\u30ef\u30a4\u30c9\u30d0\u30ca\u30fc\u30fbOGP\u753b\u50cf\u30fb\u30ab\u30d0\u30fc\u5199\u771f<\/td><td>50%<\/td><\/tr><\/tbody><\/table><\/figure>\n<h3 class=\"wp-block-heading\">\u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u4f8b\uff1a\u30ab\u30fc\u30c9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3078\u306e\u9069\u7528<\/h3>\n<p class=\"wp-block-paragraph\">\u30d6\u30ed\u30b0\u30ab\u30fc\u30c9\u3084\u5546\u54c1\u30ab\u30fc\u30c9\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u753b\u50cf\u306b\u9069\u7528\u3059\u308b\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30ab\u30fc\u30c9\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u30b5\u30e0\u30cd\u30a4\u30eb *\/\n.card__thumbnail {\n  width: 100%;\n  aspect-ratio: 16 \/ 9;\n  overflow: hidden;\n}\n\n.card__thumbnail img {\n  width: 100%;\n  height: 100%;\n  object-fit: cover; \/* \u6b6a\u307f\u306a\u304f\u30c8\u30ea\u30df\u30f3\u30b0 *\/\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u8907\u6570\u306e\u6bd4\u7387\u3092\u52d5\u7684\u306b\u5207\u308a\u66ff\u3048\u305f\u3044\u5834\u5408\u306f\u3001CSS \u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff08\u5909\u6570\uff09\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n  --ratio-16-9: 16 \/ 9;\n  --ratio-4-3:  4 \/ 3;\n  --ratio-square: 1;\n}\n\n.thumbnail {\n  aspect-ratio: var(--ratio-16-9); \/* \u5909\u6570\u3067\u5207\u308a\u66ff\u3048\u53ef\u80fd *\/\n}\n\n.thumbnail--square {\n  aspect-ratio: var(--ratio-square);\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u5c0f\u6570\u3067\u306e\u6307\u5b9a<\/h3>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u306b\u306f\u6574\u6570\u3060\u3051\u3067\u306a\u304f\u5c0f\u6570\u3082\u4f7f\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u6bd4\u7387\u3092\u6574\u6570\u3067\u660e\u793a\u3057\u305f\u65b9\u304c\u53ef\u8aad\u6027\u304c\u9ad8\u304f\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3057\u3084\u3059\u3044\u305f\u3081\u3001\u901a\u5e38\u306f\u6574\u6570\u6bd4\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u5c0f\u6570\u3067\u3082\u6307\u5b9a\u53ef\u80fd\uff08\u975e\u63a8\u5968\uff1a\u53ef\u8aad\u6027\u304c\u843d\u3061\u308b\uff09 *\/\n.box {\n  aspect-ratio: 1.7778; \/* 16\/9 \u2248 1.7778 *\/\n}\n\n\/* \u3053\u3061\u3089\u306e\u65b9\u304c\u660e\u78ba *\/\n.box {\n  aspect-ratio: 16 \/ 9;\n}<\/code><\/pre><\/div>\n<h2 class=\"wp-block-heading\">\u753b\u50cf\u3078\u306e\u9069\u7528\u3068object-fit\u306e\u4f75\u7528<\/h2>\n<p class=\"wp-block-paragraph\">\u753b\u50cf\u8981\u7d20\uff08<code>img<\/code>\uff09\u306b <code>aspect-ratio<\/code> \u3092\u9069\u7528\u3059\u308b\u3068\u304d\u3001\u305d\u306e\u307e\u307e\u3067\u306f\u753b\u50cf\u304c\u5f15\u304d\u4f38\u3070\u3055\u308c\u3066\u6b6a\u3080\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3092\u9632\u3050\u305f\u3081\u306b <code>object-fit<\/code> \u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">aspect-ratio\u3060\u3051\u3067\u306f\u753b\u50cf\u304c\u6b6a\u3080<\/h3>\n<p class=\"wp-block-paragraph\"><code>img<\/code> \u8981\u7d20\u306f\u7f6e\u63db\u8981\u7d20\uff08replaced element\uff09\u3068\u547c\u3070\u308c\u3001CSS\u3067\u7e26\u6a2a\u6bd4\u3092\u5f37\u5236\u3059\u308b\u3068\u5143\u306e\u6bd4\u7387\u3092\u7121\u8996\u3057\u3066\u5f15\u304d\u4f38\u3070\u3055\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u7e26\u9577\u306e\u5199\u771f\u306b <code>aspect-ratio: 16 \/ 9<\/code> \u3092\u6307\u5b9a\u3059\u308b\u3068\u3001\u6a2a\u306b\u5f15\u304d\u4f38\u3070\u3055\u308c\u305f\u4e0d\u81ea\u7136\u306a\u8868\u793a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG\uff1a\u753b\u50cf\u304c\u6b6a\u3080 *\/\nimg {\n  width: 100%;\n  aspect-ratio: 16 \/ 9;\n  \/* object-fit\u304c\u306a\u3044\u306e\u3067\u5143\u6bd4\u7387\u3068\u9055\u3046\u5834\u5408\u306b\u6b6a\u3080 *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">object-fit: cover\u3067\u6b6a\u307f\u306a\u304f\u30c8\u30ea\u30df\u30f3\u30b0<\/h3>\n<p class=\"wp-block-paragraph\"><code>object-fit: cover<\/code> \u3092\u8ffd\u52a0\u3059\u308b\u3068\u3001\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3092\u7dad\u6301\u3057\u305f\u307e\u307e\u6307\u5b9a\u3057\u305f\u9818\u57df\u3092\u57cb\u3081\u308b\u3088\u3046\u306b\u30c8\u30ea\u30df\u30f3\u30b0\u3055\u308c\u307e\u3059\u3002\u4e2d\u592e\u90e8\u5206\u304c\u8868\u793a\u3055\u308c\u308b\u6319\u52d5\u3067\u3001SNS\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u3084\u30ab\u30fc\u30c9\u753b\u50cf\u306b\u6700\u9069\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* OK\uff1a\u6b6a\u307e\u305a\u30c8\u30ea\u30df\u30f3\u30b0 *\/\nimg {\n  width: 100%;\n  aspect-ratio: 16 \/ 9;\n  object-fit: cover;    \/* \u6bd4\u7387\u3092\u4fdd\u3063\u3066\u30c8\u30ea\u30df\u30f3\u30b0 *\/\n  object-position: center center; \/* \u30c8\u30ea\u30df\u30f3\u30b0\u57fa\u70b9\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u4e2d\u592e\uff09 *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">object-fit\u306e\u5024\u6bd4\u8f03<\/h3>\n<figure class=\"wp-block-table\"><table><thead><tr><th>object-fit\u306e\u5024<\/th><th>\u52d5\u4f5c<\/th><th>\u4e3b\u306a\u7528\u9014<\/th><\/tr><\/thead><tbody><tr><td><code>cover<\/code><\/td><td>\u6bd4\u7387\u3092\u4fdd\u3061\u3064\u3064\u9818\u57df\u5168\u4f53\u3092\u8986\u3046\uff08\u306f\u307f\u51fa\u3059\u90e8\u5206\u306f\u30ab\u30c3\u30c8\uff09<\/td><td>\u30b5\u30e0\u30cd\u30a4\u30eb\u30fb\u30ab\u30fc\u30c9\u753b\u50cf\u30fb\u30d2\u30fc\u30ed\u30fc\u753b\u50cf<\/td><\/tr><tr><td><code>contain<\/code><\/td><td>\u6bd4\u7387\u3092\u4fdd\u3061\u3064\u3064\u9818\u57df\u5185\u306b\u53ce\u3081\u308b\uff08\u4f59\u767d\u304c\u751f\u307e\u308c\u308b\uff09<\/td><td>\u30ed\u30b4\u30fb\u30a2\u30a4\u30b3\u30f3\u30fb\u5168\u4f53\u3092\u898b\u305b\u305f\u3044\u753b\u50cf<\/td><\/tr><tr><td><code>fill<\/code><\/td><td>\u9818\u57df\u5168\u4f53\u3092\u57cb\u3081\u308b\uff08\u6bd4\u7387\u3092\u7121\u8996\u3057\u3066\u5f15\u304d\u4f38\u3070\u3057\uff09<\/td><td>\u57fa\u672c\u7684\u306b\u975e\u63a8\u5968<\/td><\/tr><tr><td><code>none<\/code><\/td><td>\u5143\u306e\u30b5\u30a4\u30ba\u3067\u8868\u793a\uff08\u5207\u308c\u308b\u5834\u5408\u3042\u308a\uff09<\/td><td>\u7b49\u500d\u8868\u793a\u3057\u305f\u3044\u5834\u5408<\/td><\/tr><tr><td><code>scale-down<\/code><\/td><td>contain\u307e\u305f\u306fnone\u306e\u5c0f\u3055\u3044\u65b9\u3092\u63a1\u7528<\/td><td>\u5143\u30b5\u30a4\u30ba\u3092\u8d85\u3048\u3066\u62e1\u5927\u3057\u305f\u304f\u306a\u3044\u5834\u5408<\/td><\/tr><\/tbody><\/table><\/figure>\n<h3 class=\"wp-block-heading\">\u5b9f\u8df5\u4f8b\uff1a\u30d6\u30ed\u30b0\u30ab\u30fc\u30c9\u306e\u30b5\u30e0\u30cd\u30a4\u30eb\u5b9f\u88c5<\/h3>\n<p class=\"wp-block-paragraph\">\u6a2a\u4e26\u3073\u306e\u30ab\u30fc\u30c9\u30b0\u30ea\u30c3\u30c9\u3067\u3001\u7570\u306a\u308b\u7e26\u6a2a\u6bd4\u306e\u753b\u50cf\u3092\u7d71\u4e00\u3057\u305f\u30b5\u30a4\u30ba\u3067\u8868\u793a\u3059\u308b\u5178\u578b\u7684\u306a\u30b1\u30fc\u30b9\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30ab\u30fc\u30c9\u30b0\u30ea\u30c3\u30c9 *\/\n.card-grid {\n  display: grid;\n  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));\n  gap: 24px;\n}\n\n\/* \u30ab\u30fc\u30c9 *\/\n.card {\n  border-radius: 8px;\n  overflow: hidden;\n  box-shadow: 0 2px 8px rgba(0,0,0,0.1);\n}\n\n\/* \u30b5\u30e0\u30cd\u30a4\u30eb\u9818\u57df *\/\n.card__image-wrapper {\n  aspect-ratio: 16 \/ 9;\n  overflow: hidden;\n}\n\n\/* \u753b\u50cf\u672c\u4f53 *\/\n.card__image-wrapper img {\n  width: 100%;\n  height: 100%;\n  object-fit: cover;\n  object-position: center;\n  transition: transform 0.3s ease;\n}\n\n\/* \u30db\u30d0\u30fc\u3067\u30ba\u30fc\u30e0\u30a4\u30f3 *\/\n.card:hover .card__image-wrapper img {\n  transform: scale(1.05);\n}<\/code><\/pre><\/div>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- HTML\u69cb\u9020 --&gt;\n&lt;div class=&quot;card-grid&quot;&gt;\n  &lt;article class=&quot;card&quot;&gt;\n    &lt;div class=&quot;card__image-wrapper&quot;&gt;\n      &lt;img src=&quot;thumbnail.jpg&quot; alt=&quot;\u8a18\u4e8b\u30b5\u30e0\u30cd\u30a4\u30eb&quot;&gt;\n    &lt;\/div&gt;\n    &lt;div class=&quot;card__body&quot;&gt;\n      &lt;h3&gt;\u8a18\u4e8b\u30bf\u30a4\u30c8\u30eb&lt;\/h3&gt;\n    &lt;\/div&gt;\n  &lt;\/article&gt;\n&lt;\/div&gt;<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u3092 <code>img<\/code> \u76f4\u63a5\u3067\u306f\u306a\u304f\u30e9\u30c3\u30d1\u30fc <code>div<\/code> \u306b\u6307\u5b9a\u3057\u3001<code>img<\/code> \u3092 <code>width: 100%; height: 100%; object-fit: cover;<\/code> \u3067\u5f15\u304d\u4f38\u3070\u3059\u30d1\u30bf\u30fc\u30f3\u3082\u6709\u52b9\u3067\u3059\u3002\u7279\u306b <code>img<\/code> \u306b\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u52a0\u3048\u305f\u3044\u5834\u5408\u3084\u3001JavaScript\u3067\u753b\u50cf\u3092lazy load\u3059\u308b\u969b\u306b <code>src<\/code> \u5c5e\u6027\u3092\u52d5\u7684\u306b\u5dee\u3057\u8fbc\u3080\u5834\u5408\u306f\u30e9\u30c3\u30d1\u30fc\u3092\u4f7f\u3046\u65b9\u6cd5\u304c\u5b89\u5b9a\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u80cc\u666f\u753b\u50cf\u3078\u306e\u5fdc\u7528<\/h3>\n<p class=\"wp-block-paragraph\">\u80cc\u666f\u753b\u50cf\uff08<code>background-image<\/code>\uff09\u306e\u5834\u5408\u306f <code>object-fit<\/code> \u306f\u4f7f\u3048\u307e\u305b\u3093\u304c\u3001<code>background-size: cover<\/code> \u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u540c\u69d8\u306e\u52b9\u679c\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.hero {\n  width: 100%;\n  aspect-ratio: 21 \/ 9;  \/* \u30b7\u30cd\u30de\u30b9\u30b3\u30fc\u30d7\u6bd4\u7387 *\/\n  background-image: url(&#x27;hero.jpg&#x27;);\n  background-size: cover;\n  background-position: center;\n}<\/code><\/pre><\/div>\n<h2 class=\"wp-block-heading\">YouTube\u52d5\u753b\u30fbiframe\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u3059\u308b<\/h2>\n<p class=\"wp-block-paragraph\">YouTube\u3084Vimeo\u306e\u52d5\u753b\u3092Web\u30da\u30fc\u30b8\u306b\u57cb\u3081\u8fbc\u3080\u969b\u3001\u516c\u5f0f\u306e\u57cb\u3081\u8fbc\u307f\u30b3\u30fc\u30c9\u306f <code>width<\/code> \u3068 <code>height<\/code> \u304c\u56fa\u5b9a\u5024\u3067\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u307e\u307e\u3067\u306f\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u8868\u793a\u3057\u305f\u3068\u304d\u306b\u6a2a\u306b\u306f\u307f\u51fa\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<code>aspect-ratio<\/code> \u3092\u4f7f\u3048\u3070\u3053\u306e\u554f\u984c\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">YouTube\u306e\u57cb\u3081\u8fbc\u307f\u30b3\u30fc\u30c9\uff08\u30c7\u30d5\u30a9\u30eb\u30c8\uff09<\/h3>\n<p class=\"wp-block-paragraph\">YouTube\u304c\u751f\u6210\u3059\u308b\u57cb\u3081\u8fbc\u307f\u30b3\u30fc\u30c9\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u56fa\u5b9a\u30b5\u30a4\u30ba\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- YouTube\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u57cb\u3081\u8fbc\u307f\u30b3\u30fc\u30c9\uff08\u56fa\u5b9a\u30b5\u30a4\u30ba\uff09 --&gt;\n&lt;iframe width=&quot;560&quot; height=&quot;315&quot;\n  src=&quot;https:\/\/www.youtube.com\/embed\/xxxxxxxxxxx&quot;\n  title=&quot;YouTube video player&quot;\n  frameborder=&quot;0&quot;\n  allow=&quot;accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture&quot;\n  allowfullscreen&gt;\n&lt;\/iframe&gt;<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u3053\u306e\u307e\u307e\u3067\u306f <code>width=\"560\"<\/code> \u304c\u56fa\u5b9a\u3055\u308c\u308b\u305f\u3081\u3001\u30e2\u30d0\u30a4\u30eb\u8868\u793a\u3067\u753b\u9762\u304b\u3089\u98db\u3073\u51fa\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">aspect-ratio\u3092\u4f7f\u3063\u305f\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\uff08\u63a8\u5968\uff09<\/h3>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u3092\u4f7f\u3048\u3070\u3001\u30e9\u30c3\u30d1\u30fc\u4e0d\u8981\u3067iframe\u81ea\u4f53\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.youtube-embed {\n  width: 100%;\n  aspect-ratio: 16 \/ 9;\n}<\/code><\/pre><\/div>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- width\u3068height\u3092HTML\u304b\u3089\u524a\u9664\u3057\u3066CSS\u3067\u5236\u5fa1 --&gt;\n&lt;iframe class=&quot;youtube-embed&quot;\n  src=&quot;https:\/\/www.youtube.com\/embed\/xxxxxxxxxxx&quot;\n  title=&quot;YouTube video player&quot;\n  frameborder=&quot;0&quot;\n  allow=&quot;accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture&quot;\n  allowfullscreen&gt;\n&lt;\/iframe&gt;<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">HTML\u306e <code>width<\/code> \u5c5e\u6027\u3068 <code>height<\/code> \u5c5e\u6027\u3092\u524a\u9664\u3057\u3001CSS\u3067 <code>width: 100%; aspect-ratio: 16 \/ 9;<\/code> \u3092\u6307\u5b9a\u3059\u308b\u3060\u3051\u3067\u3059\u3002\u30e9\u30c3\u30d1\u30fcdiv\u304c\u4e0d\u8981\u306b\u306a\u308a\u3001\u30b3\u30fc\u30c9\u304c\u3059\u3063\u304d\u308a\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">padding\u30cf\u30c3\u30af\u3092\u4f7f\u3063\u305f\u5f93\u6765\u306e\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\uff08\u53c2\u8003\uff09<\/h3>\n<p class=\"wp-block-paragraph\">\u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u3082\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306epadding\u30cf\u30c3\u30af\u306b\u3088\u308b\u5b9f\u88c5\u3082\u53c2\u8003\u3068\u3057\u3066\u63b2\u8f09\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* padding\u30cf\u30c3\u30af\u306b\u3088\u308b\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6iframe\uff08\u53e4\u3044\u624b\u6cd5\uff09 *\/\n.video-wrapper {\n  position: relative;\n  width: 100%;\n  padding-top: 56.25%; \/* 9 \u00f7 16 \u00d7 100 *\/\n  height: 0;\n  overflow: hidden;\n}\n\n.video-wrapper iframe {\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n  border: 0;\n}<\/code><\/pre><\/div>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- padding\u30cf\u30c3\u30af\u7528\u306eHTML --&gt;\n&lt;div class=&quot;video-wrapper&quot;&gt;\n  &lt;iframe\n    src=&quot;https:\/\/www.youtube.com\/embed\/xxxxxxxxxxx&quot;\n    title=&quot;YouTube video player&quot;\n    allowfullscreen&gt;\n  &lt;\/iframe&gt;\n&lt;\/div&gt;<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u8907\u6570\u306e\u57cb\u3081\u8fbc\u307f\u306b\u5bfe\u5fdc\u3059\u308b\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9<\/h3>\n<p class=\"wp-block-paragraph\">\u30da\u30fc\u30b8\u5185\u306b\u8907\u6570\u306e\u52d5\u753b\u3092\u57cb\u3081\u8fbc\u3080\u5834\u5408\u306f\u3001\u6bd4\u7387\u5225\u306e\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u6bd4\u7387\u5225\u30e6\u30fc\u30c6\u30a3\u30ea\u30c6\u30a3\u30af\u30e9\u30b9 *\/\n.embed {\n  display: block;\n  width: 100%;\n}\n\n.embed--16-9 { aspect-ratio: 16 \/ 9; }\n.embed--4-3  { aspect-ratio: 4 \/ 3; }\n.embed--1-1  { aspect-ratio: 1 \/ 1; }\n.embed--21-9 { aspect-ratio: 21 \/ 9; }<\/code><\/pre><\/div>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- \u4f7f\u3044\u65b9 --&gt;\n&lt;iframe class=&quot;embed embed--16-9&quot;\n  src=&quot;https:\/\/www.youtube.com\/embed\/xxxxxxxxxxx&quot;\n  allowfullscreen&gt;\n&lt;\/iframe&gt;<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">Google \u30de\u30c3\u30d7\u306e\u57cb\u3081\u8fbc\u307f\u306b\u3082\u5fdc\u7528\u3067\u304d\u308b<\/h3>\n<p class=\"wp-block-paragraph\">YouTube\u3068\u540c\u3058\u624b\u6cd5\u306f\u3001Google \u30de\u30c3\u30d7\u3084CodePen\u306a\u3069\u4ed6\u306eiframe\u57cb\u3081\u8fbc\u307f\u306b\u3082\u4f7f\u3048\u307e\u3059\u3002Google \u30de\u30c3\u30d7\u306f\u7e26\u6a2a\u6bd4\u304c16:9\u3088\u308a\u3082\u6b63\u65b9\u5f62\u306b\u8fd1\u3044\u8868\u793a\u304c\u597d\u307e\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u305f\u3081\u3001<code>aspect-ratio: 4 \/ 3<\/code> \u3084 <code>aspect-ratio: 1 \/ 1<\/code> \u3092\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.map-embed {\n  width: 100%;\n  aspect-ratio: 4 \/ 3; \/* \u30de\u30c3\u30d7\u306f4:3\u304c\u898b\u3084\u3059\u3044\u3053\u3068\u304c\u591a\u3044 *\/\n  border: 0;\n}<\/code><\/pre><\/div>\n<h2 class=\"wp-block-heading\">width\u30fbheight\u30fbmin-\/max-\u3068\u306e\u95a2\u4fc2\u3068auto\u306e\u6319\u52d5<\/h2>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u3068\u4ed6\u306e\u5bf8\u6cd5\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u304d\u3001\u3069\u3061\u3089\u304c\u512a\u5148\u3055\u308c\u308b\u304b\u3092\u6b63\u78ba\u306b\u7406\u89e3\u3057\u3066\u304a\u304f\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u8aa4\u3063\u305f\u7d44\u307f\u5408\u308f\u305b\u3092\u3059\u308b\u3068\u3001\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u304c\u671f\u5f85\u901a\u308a\u306b\u6a5f\u80fd\u3057\u306a\u3044\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">aspect-ratio\u3068\u660e\u793a\u7684\u306awidth\/height\u306e\u512a\u5148\u9806\u4f4d<\/h3>\n<p class=\"wp-block-paragraph\"><code>width<\/code> \u3068 <code>height<\/code> \u306e\u4e21\u65b9\u304c\u660e\u793a\u7684\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001<code>aspect-ratio<\/code> \u306f\u7121\u8996\u3055\u308c\u307e\u3059\u3002\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u304c\u6a5f\u80fd\u3059\u308b\u305f\u3081\u306b\u306f\u3001<strong>\u7247\u65b9\u306e\u5bf8\u6cd5\u304cauto\uff08\u672a\u6307\u5b9a\uff09\u307e\u305f\u306f\u89aa\u8981\u7d20\u4f9d\u5b58<\/strong>\u3067\u3042\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG: \u4e21\u65b9\u6307\u5b9a\u3059\u308b\u3068aspect-ratio\u306f\u7121\u8996\u3055\u308c\u308b *\/\n.box {\n  width: 300px;\n  height: 200px;       \/* \u660e\u793a\u7684\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b *\/\n  aspect-ratio: 16 \/ 9; \/* \u7121\u8996\u3055\u308c\u308b *\/\n}\n\n\/* OK: \u7247\u65b9\u3060\u3051\u6307\u5b9a\u3059\u308b *\/\n.box {\n  width: 300px;\n  \/* height \u306f\u672a\u6307\u5b9a \u2192 aspect-ratio\u3067\u81ea\u52d5\u8a08\u7b97 *\/\n  aspect-ratio: 16 \/ 9; \/* \u9ad8\u3055 = 300 \u00d7 9\/16 = 168.75px *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">min-width\u30fbmax-width\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h3>\n<p class=\"wp-block-paragraph\"><code>min-width<\/code> \u3084 <code>max-width<\/code> \u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3092\u4fdd\u3061\u3064\u3064\u5bf8\u6cd5\u306e\u4e0a\u9650\u30fb\u4e0b\u9650\u3092\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30c7\u30b6\u30a4\u30f3\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.thumbnail {\n  width: 100%;\n  max-width: 640px;     \/* \u6700\u5927\u5e45\u3092\u5236\u9650 *\/\n  aspect-ratio: 16 \/ 9; \/* \u6bd4\u7387\u306f\u7dad\u6301 *\/\n  margin: 0 auto;       \/* \u4e2d\u592e\u5bc4\u305b *\/\n  object-fit: cover;\n}<\/code><\/pre><\/div>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.avatar {\n  width: 80px;\n  min-width: 40px;      \/* \u5c0f\u3055\u304f\u306a\u308a\u3059\u304e\u306a\u3044 *\/\n  max-width: 120px;     \/* \u5927\u304d\u304f\u306a\u308a\u3059\u304e\u306a\u3044 *\/\n  aspect-ratio: 1;      \/* \u6b63\u65b9\u5f62\u3092\u7dad\u6301 *\/\n  border-radius: 50%;   \/* \u4e38\u3044\u30a2\u30d0\u30bf\u30fc *\/\n  object-fit: cover;\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">aspect-ratio: auto \u306e\u6319\u52d5<\/h3>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio: auto<\/code> \u306f\u3001\u8981\u7d20\u304c\u56fa\u6709\u306e\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u3092\u6301\u3064\u5834\u5408\u306b\u305d\u308c\u3092\u4f7f\u7528\u3059\u308b\u3088\u3046\u6307\u793a\u3057\u307e\u3059\u3002<code>img<\/code> \u8981\u7d20\u306f <code>width<\/code> \u5c5e\u6027\u3068 <code>height<\/code> \u5c5e\u6027\u304b\u3089\u56fa\u6709\u306e\u6bd4\u7387\u3092\u6301\u3064\u306e\u3067\u3001<code>auto<\/code> \u3092\u6307\u5b9a\u3059\u308b\u3068\u5143\u306e\u6bd4\u7387\u304c\u4f7f\u308f\u308c\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* img\u8981\u7d20\u306e\u56fa\u6709\u6bd4\u7387\u3092\u6d3b\u304b\u3059 *\/\nimg {\n  width: 100%;\n  aspect-ratio: auto; \/* width\/height\u5c5e\u6027\u304b\u3089\u6bd4\u7387\u3092\u5c0e\u51fa *\/\n  \/* height \u306f\u81ea\u52d5\u8a08\u7b97\u3055\u308c\u308b *\/\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\"><code>auto<\/code> \u3068\u6bd4\u7387\u3092\u7d44\u307f\u5408\u308f\u305b\u305f <code>aspect-ratio: auto 16 \/ 9<\/code> \u3068\u3044\u3046\u8a18\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002\u56fa\u6709\u306e\u6bd4\u7387\u304c\u3042\u308c\u3070\u305d\u3061\u3089\u3092\u512a\u5148\u3057\u3001\u306a\u3044\u5834\u5408\u306f <code>16 \/ 9<\/code> \u3092\u4f7f\u3046\u3068\u3044\u3046\u610f\u5473\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u306e\u8a18\u6cd5\u306f\u6bd4\u8f03\u7684\u65b0\u3057\u3044\u305f\u3081\u3001\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u72b6\u6cc1\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30b3\u30f3\u30c6\u30f3\u30c4\u91cf\u306b\u3088\u308b\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u306e\u5d29\u308c<\/h3>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u3092\u6307\u5b9a\u3057\u305f\u8981\u7d20\u306e\u4e2d\u306b\u30c6\u30ad\u30b9\u30c8\u3084\u5b50\u8981\u7d20\u3092\u5927\u91cf\u306b\u914d\u7f6e\u3059\u308b\u3068\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u304c <code>aspect-ratio<\/code> \u3067\u6c7a\u307e\u308b\u9ad8\u3055\u3092\u306f\u307f\u51fa\u3059\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u306f\u8981\u7d20\u304c\u7e26\u306b\u5e83\u304c\u3063\u3066\u3057\u307e\u3044\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u304c\u5d29\u308c\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30b3\u30f3\u30c6\u30f3\u30c4\u91cf\u3067\u5d29\u308c\u308b\u4f8b *\/\n.box {\n  width: 300px;\n  aspect-ratio: 1;     \/* \u6b63\u65b9\u5f62\u3092\u610f\u56f3 *\/\n  \/* \u5927\u91cf\u306e\u30c6\u30ad\u30b9\u30c8\u3092\u5165\u308c\u308b\u3068\u7e26\u306b\u5e83\u304c\u308b *\/\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u3053\u306e\u554f\u984c\u306b\u5bfe\u51e6\u3059\u308b\u306b\u306f\u3001<code>overflow: hidden<\/code> \u3092\u6307\u5b9a\u3057\u3066\u306f\u307f\u51fa\u3057\u3092\u96a0\u3059\u304b\u3001<code>min-height<\/code> \u3067\u6700\u5c0f\u9ad8\u3055\u3092\u78ba\u4fdd\u3057\u3064\u3064 <code>overflow: auto<\/code> \u3067\u30b9\u30af\u30ed\u30fc\u30eb\u3092\u8a31\u53ef\u3059\u308b\u304b\u3092\u9078\u629e\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u5bfe\u51e6\u6cd51: \u306f\u307f\u51fa\u3057\u3092\u96a0\u3059 *\/\n.fixed-box {\n  width: 300px;\n  aspect-ratio: 1;\n  overflow: hidden; \/* \u306f\u307f\u51fa\u3057\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u96a0\u3059 *\/\n}\n\n\/* \u5bfe\u51e6\u6cd52: \u30b9\u30af\u30ed\u30fc\u30eb\u53ef\u80fd\u306b\u3059\u308b *\/\n.scrollable-box {\n  width: 300px;\n  aspect-ratio: 1;\n  overflow: auto;   \/* \u30b9\u30af\u30ed\u30fc\u30eb\u30d0\u30fc\u3092\u51fa\u3059 *\/\n}\n\n\/* \u5bfe\u51e6\u6cd53: min-height\u3067\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u512a\u5148 *\/\n.flexible-box {\n  width: 300px;\n  min-height: 300px;  \/* \u6b63\u65b9\u5f62\u3092\u6700\u5c0f\u4fdd\u8a3c *\/\n  aspect-ratio: 1;    \/* \u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u5c11\u306a\u3044\u6642\u306f\u6b63\u65b9\u5f62 *\/\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u52d5\u753b\u3084\u753b\u50cf\u306a\u3069\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u56fa\u5b9a\u30b5\u30a4\u30ba\u306e\u5834\u5408\u306f\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30c6\u30ad\u30b9\u30c8\u3092\u542b\u3080\u6c4e\u7528\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306b <code>aspect-ratio<\/code> \u3092\u4f7f\u3046\u5834\u5408\u306f <code>overflow<\/code> \u306e\u6307\u5b9a\u3092\u5fd8\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u3068\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/h2>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u306f2021\u5e74\u524d\u5f8c\u304b\u3089\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u306b\u5b9f\u88c5\u3055\u308c\u3001\u73fe\u5728\u3067\u306f\u5b9f\u52d9\u3067\u306e\u63a1\u7528\u306b\u652f\u969c\u306e\u306a\u3044\u5bfe\u5fdc\u72b6\u6cc1\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u72b6\u6cc1\uff082024\u5e74\u6642\u70b9\uff09<\/h3>\n<figure class=\"wp-block-table\"><table><thead><tr><th>\u30d6\u30e9\u30a6\u30b6<\/th><th>\u5bfe\u5fdc\u30d0\u30fc\u30b8\u30e7\u30f3<\/th><th>\u30ea\u30ea\u30fc\u30b9\u5e74\u6708<\/th><th>\u5099\u8003<\/th><\/tr><\/thead><tbody><tr><td>Chrome<\/td><td>88\u4ee5\u964d<\/td><td>2021\u5e741\u6708<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><\/tr><tr><td>Firefox<\/td><td>89\u4ee5\u964d<\/td><td>2021\u5e746\u6708<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><\/tr><tr><td>Safari<\/td><td>15\u4ee5\u964d<\/td><td>2021\u5e749\u6708<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><\/tr><tr><td>Edge<\/td><td>88\u4ee5\u964d<\/td><td>2021\u5e741\u6708<\/td><td>\u5b8c\u5168\u5bfe\u5fdc\uff08Chromium\u30d9\u30fc\u30b9\uff09<\/td><\/tr><tr><td>Opera<\/td><td>74\u4ee5\u964d<\/td><td>2021\u5e74<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><\/tr><tr><td>iOS Safari<\/td><td>15\u4ee5\u964d<\/td><td>2021\u5e749\u6708<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><\/tr><tr><td>Android Chrome<\/td><td>88\u4ee5\u964d<\/td><td>2021\u5e74<\/td><td>\u5b8c\u5168\u5bfe\u5fdc<\/td><\/tr><tr><td>IE11<\/td><td>\u975e\u5bfe\u5fdc<\/td><td>\u2014<\/td><td>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u5fc5\u8981<\/td><\/tr><tr><td>Safari 14\u4ee5\u524d<\/td><td>\u975e\u5bfe\u5fdc<\/td><td>\u2014<\/td><td>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u304c\u5fc5\u8981<\/td><\/tr><\/tbody><\/table><\/figure>\n<p class=\"wp-block-paragraph\">2024\u5e74\u6642\u70b9\u3067\u306e\u30b0\u30ed\u30fc\u30d0\u30eb\u30d6\u30e9\u30a6\u30b6\u30b7\u30a7\u30a2\u3067\u306f\u3001<code>aspect-ratio<\/code> \u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u304c95%\u4ee5\u4e0a\u3092\u5360\u3081\u3066\u3044\u307e\u3059\u3002IE11\u306e\u30b5\u30dd\u30fc\u30c8\u304c\u7d42\u4e86\uff082022\u5e746\u6708\uff09\u3057\u3001\u591a\u304f\u306e\u4f01\u696d\u304cIE\u30b5\u30dd\u30fc\u30c8\u3092\u6253\u3061\u5207\u3063\u305f\u73fe\u5728\u3001\u65b0\u898f\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f <code>aspect-ratio<\/code> \u3092\u7a4d\u6975\u7684\u306b\u63a1\u7528\u3057\u3066\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3 class=\"wp-block-heading\">@supports\u3092\u4f7f\u3063\u305f\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/h3>\n<p class=\"wp-block-paragraph\">\u53e4\u3044Safari\u3084IE11\u3082\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001<code>@supports<\/code> \u30a2\u30c3\u30c8\u30eb\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u63d0\u4f9b\u3067\u304d\u307e\u3059\u3002<code>@supports<\/code> \u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30d6\u30e9\u30a6\u30b6\u306f <code>aspect-ratio<\/code> \u3082\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u3053\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u78ba\u5b9f\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30c7\u30d5\u30a9\u30eb\u30c8\uff1apadding\u30cf\u30c3\u30af\uff08\u53e4\u3044\u74b0\u5883\u5411\u3051\uff09 *\/\n.video-wrapper {\n  position: relative;\n  width: 100%;\n  padding-top: 56.25%; \/* 16:9\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af *\/\n  height: 0;\n  overflow: hidden;\n}\n\n.video-wrapper iframe {\n  position: absolute;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: 100%;\n}\n\n\/* aspect-ratio\u304c\u4f7f\u3048\u308b\u306a\u3089\u4e0a\u66f8\u304d *\/\n@supports (aspect-ratio: 1) {\n  .video-wrapper {\n    padding-top: 0;    \/* padding\u30cf\u30c3\u30af\u3092\u89e3\u9664 *\/\n    height: auto;\n    aspect-ratio: 16 \/ 9;\n  }\n\n  .video-wrapper iframe {\n    position: static;  \/* \u7d76\u5bfe\u914d\u7f6e\u3092\u89e3\u9664 *\/\n    width: 100%;\n    height: 100%;\n  }\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">CSS\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6d3b\u7528\u3057\u305f\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/h3>\n<p class=\"wp-block-paragraph\">\u3088\u308a\u6d17\u7df4\u3055\u308c\u305f\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u624b\u6cd5\u3068\u3057\u3066\u3001CSS\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3046\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.video-wrapper {\n  --aspect-ratio: calc(9 \/ 16);  \/* 56.25% *\/\n\n  position: relative;\n  width: 100%;\n  padding-top: calc(var(--aspect-ratio) * 100%);\n  height: 0;\n  overflow: hidden;\n}\n\n@supports (aspect-ratio: 1) {\n  .video-wrapper {\n    padding-top: 0;\n    height: auto;\n    aspect-ratio: 16 \/ 9;\n  }\n}<\/code><\/pre><\/div>\n<p class=\"wp-block-paragraph\">\u306a\u304a\u3001JavaScript\u3067 <code>CSS.supports('aspect-ratio', '1')<\/code> \u3092\u4f7f\u3048\u3070\u3001\u30b9\u30af\u30ea\u30d7\u30c8\u304b\u3089\u3082\u5bfe\u5fdc\u72b6\u6cc1\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u73fe\u5728\u306e\u5bfe\u5fdc\u72b6\u6cc1\u3092\u8003\u3048\u308b\u3068\u3001\u591a\u304f\u306e\u5834\u5408\u306f <code>@supports<\/code> \u306eCSS\u306e\u307f\u3067\u5341\u5206\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">Sass\/SCSS\u3067\u306e\u30df\u30c3\u30af\u30b9\u30a4\u30f3\u5316<\/h3>\n<p class=\"wp-block-paragraph\">Sass\u3084SCSS\u3092\u4f7f\u3063\u3066\u3044\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u8fbc\u307f\u306e\u30df\u30c3\u30af\u30b9\u30a4\u30f3\u3092\u4f5c\u3063\u3066\u304a\u304f\u3068\u518d\u5229\u7528\u6027\u304c\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/\/ _mixins.scss\n@mixin aspect-ratio($width, $height) {\n  \/\/ \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\uff08padding\u30cf\u30c3\u30af\uff09\n  position: relative;\n  width: 100%;\n  padding-top: percentage(calc($height \/ $width));\n  height: 0;\n  overflow: hidden;\n\n  \/\/ aspect-ratio\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u5411\u3051\u4e0a\u66f8\u304d\n  @supports (aspect-ratio: 1) {\n    padding-top: 0;\n    height: auto;\n    aspect-ratio: #{$width} \/ #{$height};\n  }\n}\n\n\/\/ \u4f7f\u3044\u65b9\n.video {\n  @include aspect-ratio(16, 9);\n}\n\n.thumbnail {\n  @include aspect-ratio(4, 3);\n}<\/code><\/pre><\/div>\n<h2 class=\"wp-block-heading\">aspect-ratio\u304c\u52b9\u304b\u306a\u3044\u3068\u304d\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u3092\u6307\u5b9a\u3057\u305f\u306e\u306b\u671f\u5f85\u901a\u308a\u306b\u52d5\u304b\u306a\u3044\u3001\u3068\u3044\u3046\u30c8\u30e9\u30d6\u30eb\u306f\u521d\u5fc3\u8005\u304c\u3088\u304f\u3076\u3064\u304b\u308b\u58c1\u3067\u3059\u3002\u539f\u56e0\u306f\u307b\u3068\u3093\u3069\u306e\u5834\u5408\u3001CSS\u306e\u4ed6\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u306e\u7af6\u5408\u3084HTML\u8981\u7d20\u306e\u7279\u6027\u3078\u306e\u7406\u89e3\u4e0d\u8db3\u3067\u3059\u3002\u3088\u304f\u3042\u308b\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u539f\u56e01\uff1aheight\u304c\u660e\u793a\u7684\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b<\/h3>\n<p class=\"wp-block-paragraph\">\u6700\u3082\u3088\u304f\u3042\u308b\u30df\u30b9\u3067\u3059\u3002<code>height<\/code> \u304c\u660e\u793a\u7684\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u3068\u3001<code>aspect-ratio<\/code> \u306f\u305d\u306e\u8a08\u7b97\u7d50\u679c\u3088\u308a\u660e\u793a\u5024\u304c\u512a\u5148\u3055\u308c\u308b\u305f\u3081\u3001\u30a2\u30b9\u30da\u30af\u30c8\u6bd4\u901a\u308a\u306b\u306a\u3089\u306a\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG: height\u304c\u56fa\u5b9a\u5024\u3067\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b *\/\n.box {\n  width: 300px;\n  height: 200px;        \/* \u3053\u308c\u304c\u512a\u5148\u3055\u308c\u308b *\/\n  aspect-ratio: 1;      \/* \u6b63\u65b9\u5f62\u306b\u306a\u3089\u306a\u3044 *\/\n}\n\n\/* OK: height\u3092auto\u306b\u3059\u308b or \u524a\u9664\u3059\u308b *\/\n.box {\n  width: 300px;\n  height: auto;         \/* \u307e\u305f\u306f\u7701\u7565 *\/\n  aspect-ratio: 1;      \/* \u6b63\u65b9\u5f62\u306b\u306a\u308b *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u539f\u56e02\uff1a\u89aa\u8981\u7d20\u306edisplay\u304cflex\u307e\u305f\u306fgrid\u3067\u3001align\u304c\u52b9\u3044\u3066\u3044\u308b<\/h3>\n<p class=\"wp-block-paragraph\">Flexbox\u30b3\u30f3\u30c6\u30ca\u306e\u5b50\u8981\u7d20\u306f\u3001\u30c7\u30d5\u30a9\u30eb\u30c8\u3067 <code>align-items: stretch<\/code> \u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u5b50\u8981\u7d20\u304c\u7e26\u65b9\u5411\u306b\u5f15\u304d\u4f38\u3070\u3055\u308c\u3001<code>aspect-ratio<\/code> \u306e\u8a08\u7b97\u304c\u4e0a\u66f8\u304d\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u554f\u984c\u304c\u8d77\u304d\u308b\u30b1\u30fc\u30b9 *\/\n.flex-container {\n  display: flex;\n  \/* align-items: stretch \u304c\u30c7\u30d5\u30a9\u30eb\u30c8 *\/\n}\n\n.flex-child {\n  width: 200px;\n  aspect-ratio: 1;  \/* stretch\u3067\u7e26\u304c\u5f15\u304d\u4f38\u3070\u3055\u308c\u6b63\u65b9\u5f62\u306b\u306a\u3089\u306a\u3044 *\/\n}<\/code><\/pre><\/div>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u5bfe\u51e6\u6cd51: align-self\u3092auto\u307e\u305f\u306fflex-start\u306b\u3059\u308b *\/\n.flex-container {\n  display: flex;\n  align-items: flex-start; \/* stretch\u3092\u89e3\u9664 *\/\n}\n\n\/* \u5bfe\u51e6\u6cd52: \u5b50\u8981\u7d20\u5074\u3067align-self\u3092\u6307\u5b9a *\/\n.flex-child {\n  width: 200px;\n  aspect-ratio: 1;\n  align-self: flex-start;  \/* stretch\u3092\u89e3\u9664 *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u539f\u56e03\uff1a\u30d6\u30e9\u30a6\u30b6\u304c\u53e4\u304f\u3066\u672a\u5bfe\u5fdc<\/h3>\n<p class=\"wp-block-paragraph\">Safari 14\u4ee5\u524d\u3001IE11\u306a\u3069\u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u3067\u306f <code>aspect-ratio<\/code> \u304c\u672a\u5bfe\u5fdc\u3067\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\uff08DevTools\uff09\u3067CSS\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u6253\u3061\u6d88\u3057\u7dda\u3067\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u672a\u5bfe\u5fdc\u306e\u30b5\u30a4\u30f3\u3067\u3059\u3002\u5bfe\u51e6\u6cd5\u306f\u524d\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u7d39\u4ecb\u3057\u305f <code>@supports<\/code> \u306b\u3088\u308b\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u539f\u56e04\uff1awidth\u304c\u78ba\u5b9a\u3057\u3066\u3044\u306a\u3044<\/h3>\n<p class=\"wp-block-paragraph\"><code>aspect-ratio<\/code> \u306f\u5e45\u304b\u9ad8\u3055\u306e\u3069\u3061\u3089\u304b\u304c\u78ba\u5b9a\u3057\u3066\u3044\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30a4\u30f3\u30e9\u30a4\u30f3\u8981\u7d20\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u30b3\u30f3\u30c6\u30f3\u30c4\u5e45\u306b\u306a\u308a\u307e\u3059\u304c\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u306a\u3044\u5834\u5408\u306f\u5e45\u304c0\u306b\u306a\u308a\u3001<code>aspect-ratio<\/code> \u304c\u6a5f\u80fd\u3057\u307e\u305b\u3093\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG: \u30a4\u30f3\u30e9\u30a4\u30f3span\u8981\u7d20\u306b\u305d\u306e\u307e\u307e\u6307\u5b9a *\/\nspan {\n  aspect-ratio: 16 \/ 9;\n  \/* span\u306finline\u8981\u7d20\u3067width\u304c\u78ba\u5b9a\u3057\u306a\u3044 *\/\n}\n\n\/* OK: \u30d6\u30ed\u30c3\u30af\u8981\u7d20\u306b\u5909\u63db\u3059\u308b\u304bwidth\u3092\u6307\u5b9a *\/\nspan {\n  display: block;       \/* \u307e\u305f\u306f inline-block *\/\n  width: 200px;         \/* \u5e45\u3092\u78ba\u5b9a\u3055\u305b\u308b *\/\n  aspect-ratio: 16 \/ 9;\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u539f\u56e05\uff1amin-height\u3084max-height\u306b\u3088\u308b\u4e0a\u66f8\u304d<\/h3>\n<p class=\"wp-block-paragraph\"><code>min-height<\/code> \u3084 <code>max-height<\/code> \u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3068\u3001<code>aspect-ratio<\/code> \u3067\u8a08\u7b97\u3055\u308c\u305f\u9ad8\u3055\u304c\u305d\u308c\u3089\u306b\u5236\u7d04\u3055\u308c\u307e\u3059\u3002\u7279\u306b <code>min-height: 100vh<\/code> \u306e\u3088\u3046\u306a\u5168\u753b\u9762\u6307\u5b9a\u304c\u7956\u5148\u8981\u7d20\u306b\u3042\u308b\u5834\u5408\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u554f\u984c: min-height\u304caspect-ratio\u3092\u4e0a\u66f8\u304d *\/\n.hero {\n  width: 100%;\n  aspect-ratio: 16 \/ 9;  \/* \u9ad8\u3055 = \u5e45 \u00d7 9\/16 \u3092\u671f\u5f85 *\/\n  min-height: 100vh;     \/* \u3053\u308c\u304c\u512a\u5148\u3055\u308c\u3001aspect-ratio\u306f\u52b9\u304b\u306a\u3044 *\/\n}\n\n\/* \u5bfe\u51e6\u6cd5: min-height\u3092\u524a\u9664\u307e\u305f\u306funset\u3067\u89e3\u9664 *\/\n.hero {\n  width: 100%;\n  aspect-ratio: 16 \/ 9;\n  min-height: unset;     \/* \u7d99\u627f\u3055\u308c\u305fmin-height\u3092\u89e3\u9664 *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u539f\u56e06\uff1aCSS\u306e\u8a73\u7d30\u5ea6\u3084\u8aad\u307f\u8fbc\u307f\u9806\u306e\u7af6\u5408<\/h3>\n<p class=\"wp-block-paragraph\">\u4ed6\u306eCSS\u30d5\u30a1\u30a4\u30eb\u3084\u30e9\u30a4\u30d6\u30e9\u30ea\u304c <code>height<\/code> \u3092\u6307\u5b9a\u3057\u3066\u3044\u3066\u3001\u305d\u308c\u304c\u5f8c\u304b\u3089\u8aad\u307f\u8fbc\u307e\u308c\u3066\u4e0a\u66f8\u304d\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3067\u5bfe\u8c61\u8981\u7d20\u306eComputed\u30b9\u30bf\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u3001<code>height<\/code> \u304c\u3069\u3053\u3067\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u304b\u8ffd\u8de1\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30ea\u30bb\u30c3\u30c8CSS\u304c\u60aa\u3055\u3092\u3059\u308b\u4f8b\uff08\u3088\u304f\u3042\u308b\uff09 *\/\n\/* normalize.css \u306a\u3069\u3067 img \u306b height \u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u30b1\u30fc\u30b9 *\/\n\n\/* \u5bfe\u51e6\u6cd5: !important \u306f\u6700\u7d42\u624b\u6bb5\u3002\u8a73\u7d30\u5ea6\u3092\u4e0a\u3052\u308b\u304b\u9806\u756a\u3092\u8abf\u6574\u3059\u308b *\/\n.my-image {\n  aspect-ratio: 16 \/ 9;\n  height: auto !important; \/* \u672c\u5f53\u306b\u6700\u5f8c\u306e\u624b\u6bb5 *\/\n}<\/code><\/pre><\/div>\n<h3 class=\"wp-block-heading\">\u30c7\u30d0\u30c3\u30b0\u306e\u624b\u9806\u307e\u3068\u3081<\/h3>\n<ul class=\"wp-block-list\"><li>\u30d6\u30e9\u30a6\u30b6\u306eDevTools\u3067\u5bfe\u8c61\u8981\u7d20\u3092\u9078\u629e\u3057\u3001Computed\u30bf\u30d6\u3067 <code>height<\/code> \u306e\u5b9f\u969b\u306e\u5024\u3092\u78ba\u8a8d\u3059\u308b<\/li><li><code>aspect-ratio<\/code> \u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u6253\u3061\u6d88\u3057\u7dda\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b\uff08\u306a\u3063\u3066\u3044\u308c\u3070\u672a\u5bfe\u5fdc\u304b\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3044\u308b\uff09<\/li><li>\u89aa\u8981\u7d20\u306e <code>display<\/code> \u304c flex\/grid \u306e\u5834\u5408\u3001<code>align-items<\/code> \u306e\u5024\u3092\u78ba\u8a8d\u3059\u308b<\/li><li>\u8981\u7d20\u306e <code>width<\/code> \u304c\u5b9f\u969b\u306b\u78ba\u5b9a\u3057\u3066\u3044\u308b\u304b\uff080\u3067\u306a\u3044\u304b\uff09\u78ba\u8a8d\u3059\u308b<\/li><li><code>min-height<\/code> \/ <code>max-height<\/code> \u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3059\u308b<\/li><\/ul>\n\n\n<!-- withmedia-faq -->\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/h2>\n\n<h3 class=\"wp-block-heading\">aspect-ratio\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3069\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u4f7f\u3048\u307e\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">Chrome 88\u3001Firefox 89\u3001Safari 15\u3001Edge 88\u4ee5\u964d\u3067\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u30022021\u5e74\u4ee5\u964d\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306f\u307b\u307c\u3059\u3079\u3066\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30b7\u30a7\u30a2\u306795%\u4ee5\u4e0a\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002IE11\u3068 Safari 14\u4ee5\u524d\u306f\u672a\u5bfe\u5fdc\u306e\u305f\u3081\u3001\u3053\u308c\u3089\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5834\u5408\u306fpadding\u30cf\u30c3\u30af\u3092\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066@supports\u3067\u63d0\u4f9b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n<h3 class=\"wp-block-heading\">css aspect-ratio\u3068object-fit\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">aspect-ratio\u306f\u8981\u7d20\u306e\u7e26\u6a2a\u6bd4\uff08\u5e45\u3068\u9ad8\u3055\u306e\u6bd4\u7387\uff09\u3092\u6307\u5b9a\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002\u4e00\u65b9object-fit\u306f\u3001img\u8981\u7d20\u3084video\u8981\u7d20\u306a\u3069\u306e\u7f6e\u63db\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u3001\u6307\u5b9a\u3057\u305f\u7e26\u6a2a\u6bd4\u306e\u9818\u57df\u306b\u3069\u306e\u3088\u3046\u306b\u53ce\u307e\u308b\u304b\u3092\u5236\u5fa1\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002aspect-ratio\u306716:9\u306e\u9818\u57df\u3092\u4f5c\u308a\u3001object-fit:cover\u3067\u753b\u50cf\u3092\u6b6a\u307e\u305b\u305a\u306b\u305d\u306e\u9818\u57df\u3092\u57cb\u3081\u308b\u3001\u3068\u3044\u3046\u7d44\u307f\u5408\u308f\u305b\u304c\u6700\u3082\u4e00\u822c\u7684\u306a\u4f7f\u3044\u65b9\u3067\u3059\u3002<\/p>\n\n<h3 class=\"wp-block-heading\">YouTube\u306eiframe\u3092css\u3067\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u3059\u308b\u65b9\u6cd5\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044<\/h3>\n\n<p class=\"wp-block-paragraph\">iframe\u306bclass\u5c5e\u6027\u3092\u8ffd\u52a0\u3057\u3001CSS\u3067width: 100%; aspect-ratio: 16 \/ 9;\u3092\u6307\u5b9a\u3059\u308b\u3060\u3051\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002YouTube\u306e\u57cb\u3081\u8fbc\u307f\u30b3\u30fc\u30c9\u306b\u3042\u308b\u56fa\u5b9a\u306ewidth\u30fbheight\u5c5e\u6027\u306fHTML\u5074\u304b\u3089\u524a\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u3082\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5834\u5408\u306f\u3001\u30e9\u30c3\u30d1\u30fcdiv\u306bposition: relative; padding-top: 56.25%; height: 0;\u3092\u6307\u5b9a\u3057\u3001iframe\u5074\u306bposition: absolute; top: 0; left: 0; width: 100%; height: 100%;\u3092\u8a2d\u5b9a\u3059\u308bpadding\u30cf\u30c3\u30af\u304c\u78ba\u5b9f\u3067\u3059\u3002<\/p>\n\n<h3 class=\"wp-block-heading\">\u753b\u50cf\u306e\u7e26\u6a2a\u6bd4\u3092css\u3067\u56fa\u5b9a\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">img\u8981\u7d20\u306bwidth: 100%; aspect-ratio: 16 \/ 9; object-fit: cover;\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u7e26\u6a2a\u6bd4\u3092\u56fa\u5b9a\u3067\u304d\u307e\u3059\u3002aspect-ratio\u3060\u3051\u3067\u306f\u753b\u50cf\u304c\u6b6a\u3080\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u5fc5\u305aobject-fit\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u304f\u3060\u3055\u3044\u3002object-fit: cover\u306f\u6bd4\u7387\u3092\u4fdd\u3061\u3064\u3064\u9818\u57df\u5168\u4f53\u3092\u57cb\u3081\u308b\u3088\u3046\u306b\u30c8\u30ea\u30df\u30f3\u30b0\u3057\u3001object-fit: contain\u306f\u6bd4\u7387\u3092\u4fdd\u3061\u3064\u3064\u9818\u57df\u5185\u306b\u53ce\u3081\u308b\uff08\u4f59\u767d\u304c\u751f\u307e\u308c\u308b\uff09\u52d5\u4f5c\u3092\u3057\u307e\u3059\u3002<\/p>\n\n<h3 class=\"wp-block-heading\">aspect-ratio\u304c\u52b9\u304b\u306a\u3044\u3068\u304d\u3001\u307e\u305a\u4f55\u3092\u78ba\u8a8d\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u30d6\u30e9\u30a6\u30b6\u306eDevTools\u3067Computed\u30b9\u30bf\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u3001height\u5c5e\u6027\u304c\u660e\u793a\u7684\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002width\u3068height\u304c\u4e21\u65b9\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306faspect-ratio\u304c\u7121\u8996\u3055\u308c\u307e\u3059\u3002\u6b21\u306baspect-ratio\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u6253\u3061\u6d88\u3057\u7dda\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u307e\u3059\uff08\u672a\u5bfe\u5fdc\u304b\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3044\u308b\u30b5\u30a4\u30f3\uff09\u3002\u307e\u305f\u3001\u89aa\u8981\u7d20\u304cFlexbox\u306e\u5834\u5408\u306falign-items: stretch\u304c\u5b50\u8981\u7d20\u306e\u9ad8\u3055\u3092\u5f15\u304d\u4f38\u3070\u3059\u305f\u3081\u3001align-self: flex-start\u3092\u5b50\u8981\u7d20\u306b\u6307\u5b9a\u3057\u3066\u89e3\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<!-- withmedia-faq-schema -->\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"aspect-ratio\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u3069\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u4f7f\u3048\u307e\u3059\u304b\uff1f\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Chrome 88\u3001Firefox 89\u3001Safari 15\u3001Edge 88\u4ee5\u964d\u3067\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u30022021\u5e74\u4ee5\u964d\u306b\u30ea\u30ea\u30fc\u30b9\u3055\u308c\u305f\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306f\u307b\u307c\u3059\u3079\u3066\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u30b0\u30ed\u30fc\u30d0\u30eb\u30b7\u30a7\u30a2\u306795%\u4ee5\u4e0a\u3092\u30ab\u30d0\u30fc\u3057\u3066\u3044\u307e\u3059\u3002IE11\u3068 Safari 14\u4ee5\u524d\u306f\u672a\u5bfe\u5fdc\u306e\u305f\u3081\u3001\u3053\u308c\u3089\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5834\u5408\u306fpadding\u30cf\u30c3\u30af\u3092\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066@supports\u3067\u63d0\u4f9b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\"}}, {\"@type\": \"Question\", \"name\": \"css aspect-ratio\u3068object-fit\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"aspect-ratio\u306f\u8981\u7d20\u306e\u7e26\u6a2a\u6bd4\uff08\u5e45\u3068\u9ad8\u3055\u306e\u6bd4\u7387\uff09\u3092\u6307\u5b9a\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002\u4e00\u65b9object-fit\u306f\u3001img\u8981\u7d20\u3084video\u8981\u7d20\u306a\u3069\u306e\u7f6e\u63db\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u3001\u6307\u5b9a\u3057\u305f\u7e26\u6a2a\u6bd4\u306e\u9818\u57df\u306b\u3069\u306e\u3088\u3046\u306b\u53ce\u307e\u308b\u304b\u3092\u5236\u5fa1\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002aspect-ratio\u306716:9\u306e\u9818\u57df\u3092\u4f5c\u308a\u3001object-fit:cover\u3067\u753b\u50cf\u3092\u6b6a\u307e\u305b\u305a\u306b\u305d\u306e\u9818\u57df\u3092\u57cb\u3081\u308b\u3001\u3068\u3044\u3046\u7d44\u307f\u5408\u308f\u305b\u304c\u6700\u3082\u4e00\u822c\u7684\u306a\u4f7f\u3044\u65b9\u3067\u3059\u3002\"}}, {\"@type\": \"Question\", \"name\": \"YouTube\u306eiframe\u3092css\u3067\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306b\u3059\u308b\u65b9\u6cd5\u3092\u6559\u3048\u3066\u304f\u3060\u3055\u3044\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"iframe\u306bclass\u5c5e\u6027\u3092\u8ffd\u52a0\u3057\u3001CSS\u3067width: 100%; aspect-ratio: 16 \/ 9;\u3092\u6307\u5b9a\u3059\u308b\u3060\u3051\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002YouTube\u306e\u57cb\u3081\u8fbc\u307f\u30b3\u30fc\u30c9\u306b\u3042\u308b\u56fa\u5b9a\u306ewidth\u30fbheight\u5c5e\u6027\u306fHTML\u5074\u304b\u3089\u524a\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u3082\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u5834\u5408\u306f\u3001\u30e9\u30c3\u30d1\u30fcdiv\u306bposition: relative; padding-top: 56.25%; height: 0;\u3092\u6307\u5b9a\u3057\u3001iframe\u5074\u306bposition: absolute; top: 0; left: 0; width: 100%; height: 100%;\u3092\u8a2d\u5b9a\u3059\u308bpadding\u30cf\u30c3\u30af\u304c\u78ba\u5b9f\u3067\u3059\u3002\"}}, {\"@type\": \"Question\", \"name\": \"\u753b\u50cf\u306e\u7e26\u6a2a\u6bd4\u3092css\u3067\u56fa\u5b9a\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"img\u8981\u7d20\u306bwidth: 100%; aspect-ratio: 16 \/ 9; object-fit: cover;\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u7e26\u6a2a\u6bd4\u3092\u56fa\u5b9a\u3067\u304d\u307e\u3059\u3002aspect-ratio\u3060\u3051\u3067\u306f\u753b\u50cf\u304c\u6b6a\u3080\u5834\u5408\u304c\u3042\u308b\u305f\u3081\u3001\u5fc5\u305aobject-fit\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u304f\u3060\u3055\u3044\u3002object-fit: cover\u306f\u6bd4\u7387\u3092\u4fdd\u3061\u3064\u3064\u9818\u57df\u5168\u4f53\u3092\u57cb\u3081\u308b\u3088\u3046\u306b\u30c8\u30ea\u30df\u30f3\u30b0\u3057\u3001object-fit: contain\u306f\u6bd4\u7387\u3092\u4fdd\u3061\u3064\u3064\u9818\u57df\u5185\u306b\u53ce\u3081\u308b\uff08\u4f59\u767d\u304c\u751f\u307e\u308c\u308b\uff09\u52d5\u4f5c\u3092\u3057\u307e\u3059\u3002\"}}, {\"@type\": \"Question\", \"name\": \"aspect-ratio\u304c\u52b9\u304b\u306a\u3044\u3068\u304d\u3001\u307e\u305a\u4f55\u3092\u78ba\u8a8d\u3059\u308c\u3070\u3044\u3044\u3067\u3059\u304b\uff1f\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"\u307e\u305a\u30d6\u30e9\u30a6\u30b6\u306eDevTools\u3067Computed\u30b9\u30bf\u30a4\u30eb\u3092\u78ba\u8a8d\u3057\u3001height\u5c5e\u6027\u304c\u660e\u793a\u7684\u306b\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002width\u3068height\u304c\u4e21\u65b9\u6307\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306faspect-ratio\u304c\u7121\u8996\u3055\u308c\u307e\u3059\u3002\u6b21\u306baspect-ratio\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u6253\u3061\u6d88\u3057\u7dda\u306b\u306a\u3063\u3066\u3044\u306a\u3044\u304b\u78ba\u8a8d\u3057\u307e\u3059\uff08\u672a\u5bfe\u5fdc\u304b\u4e0a\u66f8\u304d\u3055\u308c\u3066\u3044\u308b\u30b5\u30a4\u30f3\uff09\u3002\u307e\u305f\u3001\u89aa\u8981\u7d20\u304cFlexbox\u306e\u5834\u5408\u306falign-items: stretch\u304c\u5b50\u8981\u7d20\u306e\u9ad8\u3055\u3092\u5f15\u304d\u4f38\u3070\u3059\u305f\u3081\u3001align-self: flex-start\u3092\u5b50\u8981\u7d20\u306b\u6307\u5b9a\u3057\u3066\u89e3\u9664\u3057\u3066\u304f\u3060\u3055\u3044\u3002\"}}]}<\/script>\n\n\n\n\n<!-- withmedia-related -->\n<h2 class=\"wp-block-heading\">\u95a2\u9023\u8a18\u4e8b<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/withcode.tech\/media\/css-object-fit\/\">\u30102026\u5e74\u7248\u3011object-fit\u3067\u753b\u50cf\u3092\u30c8\u30ea\u30df\u30f3\u30b0\uff5ccover\/contain<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/image-switching-for-each-device\/\">CSS\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3067\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30d0\u30ca\u30fc\u5b9f\u88c5\uff5c\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/css-media-query\/\">\u30102026\u5e74\u7248\u3011CSS\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u5b8c\u5168\u30ac\u30a4\u30c9\uff5c\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306e\u66f8\u304d\u65b9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/heroimage-guide\/\">\u30d2\u30fc\u30ed\u30fc\u30a4\u30e1\u30fc\u30b8\u3068\u306f?Web\u30c7\u30b6\u30a4\u30f3\u5b8c\u5168\u30ac\u30a4\u30c9\u30102026\u5e74\u7248\u3011<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">CSS\u30fbWeb\u30c7\u30b6\u30a4\u30f3\u5b9f\u88c5\u306e\u7dcf\u307e\u3068\u3081<\/h2>\n\n<p class=\"wp-block-paragraph\">CSS\u306e\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af\u3092\u300c\u30ec\u30a4\u30a2\u30a6\u30c8\u30fb\u88c5\u98fe\u30fb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u30fb\u57fa\u790e\u30fb\u30c8\u30e9\u30d6\u30eb\u89e3\u6c7a\u300d\u306e\u76ee\u7684\u5225\u306b\u63a2\u305b\u308b\u7dcf\u307e\u3068\u3081\u30da\u30fc\u30b8\u3092\u7528\u610f\u3057\u3066\u3044\u307e\u3059\u3002\u5b9f\u88c5\u3067\u8ff7\u3063\u305f\u3068\u304d\u306e\u7d22\u5f15\u3068\u3057\u3066\u3069\u3046\u305e\u3002<\/p>\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/withcode.tech\/media\/css-webdesign-technique-map\/\">\u3010CSS\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af\u5b8c\u5168\u30de\u30c3\u30d7\u3011\u30b3\u30d4\u30da\u3067\u4f7f\u3048\u308bWeb\u30c7\u30b6\u30a4\u30f3\u5b9f\u88c5\u30ac\u30a4\u30c9\u7dcf\u307e\u3068\u3081<\/a><\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\">WithCode\u3092\u4f53\u9a13\u3067\u304d\u308b\u521d\u7d1a\u30b3\u30fc\u30b9\u516c\u958b\u4e2d\uff01<\/h2>\n\n<figure class=\"wp-block-image alignleft size-full\"><img decoding=\"async\" width=\"600\" height=\"500\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2024\/04\/\u30d0\u30ca\u30fc_300\u00d7250_20240425.png\" alt=\"WithCode\u3092\u4f53\u9a13\u3067\u304d\u308b\u521d\u7d1a\u30b3\u30fc\u30b9\u516c\u958b\u4e2d\uff01\" class=\"wp-image-2650\"\/><\/figure>\n\n<h3 class=\"wp-block-heading\">\u521d\u7d1a\u30b3\u30fc\u30b9(\u00a549,800)\u304c\u5b8c\u5168\u7121\u6599\u306b\uff01<\/h3>\n\n<ul class=\"wp-block-list\">\n<li><strong>\u671f\u9593\uff1a1\u9031\u9593<\/strong><\/li>\n<li><strong>\u5b66\u7fd2\u5185\u5bb9\uff1a<\/strong><br><strong>\u30ed\u30fc\u30c9\u30de\u30c3\u30d7\/\u57fa\u790e\u77e5\u8b58\/\u74b0\u5883\u69cb\u7bc9\/HTML\/CSS\/LP\u30fb\u30dd\u30fc\u30c8\u30d5\u30a9\u30ea\u30aa\u4f5c\u6210<\/strong><br><strong>\u2192 <span class=\"swl-marker mark_yellow\">\u6b63\u3057\u3044\u5b66\u7fd2\u65b9\u6cd5\u3067\u300c\u78ba\u304b\u306a\u6210\u9577\u300d\u3092\u5b9f\u611f\u3067\u304d\u308b\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0\u3002<\/span><\/strong><\/li>\n<\/ul>\n\n<p>\u526f\u696d\u30fb\u30d5\u30ea\u30fc\u30e9\u30f3\u30b9\u304c\u4e3b\u6d41\u306b\u306a\u3063\u3066\u3044\u308b\u4eca\u3053\u305d\u3001\u81ea\u3089\u306e\u30b9\u30ad\u30eb\u3067\u7a3c\u3052\u308b\u4eba\u6750\u3092\u76ee\u6307\u3057\u3066\u307f\u307e\u305b\u3093\u304b\uff1f<\/p>\n\n<p>\u672a\u7d4c\u9a13\u3067\u3082\u5fc3\u914d\u3059\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u521d\u7d1a\u30b3\u30fc\u30b9\u3092\u53d7\u8b1b\u3055\u308c\u308b\u65b9\u306e\u5927\u591a\u6570\u306f\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u672a\u7d4c\u9a13\u3067\u3059\u3002\u307e\u305a\u306f\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u3067\u3001\u60a9\u307f\u3084\u4e0d\u5b89\u3092\u304a\u805e\u304b\u305b\u304f\u3060\u3055\u3044\uff01<\/p>\n\n<div class=\"wp-block-buttons\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link has-white-color has-text-color has-background has-link-color wp-element-button\" href=\"https:\/\/withcode.tech\/reservation\/\" style=\"background-color:#ffbf00\"><strong>\u516c\u5f0f\u30b5\u30a4\u30c8\u304b\u3089\u7121\u6599\u30ab\u30a6\u30f3\u30bb\u30ea\u30f3\u30b0\u306b\u7533\u3057\u8fbc\u3080 \u2192<\/strong><\/a><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>CSS\u306e\u300caspect-ratio\u300d\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3048\u3070\u3001\u305f\u3063\u305f1\u884c\u3067\u8981\u7d20\u306e\u7e26\u6a2a\u6bd4\u3092\u56fa\u5b9a\u3067\u304d\u307e\u3059\u3002YouTube\u306e\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u3001\u753b\u50cf\u306e\u30c8\u30ea\u30df\u30f3\u30b0\u3001\u5f93\u6765\u306epadding\u30cf\u30c3\u30af\u3068\u306e\u6bd4\u8f03\u307e\u3067\u3001\u521d\u5fc3\u8005\u304b\u3089\u4e2d\u7d1a\u8005\u5411\u3051\u306b\u5b9f\u8df5\u7684\u306a\u30b3\u30fc\u30c9\u4f8b\u3067\u5fb9\u5e95\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":18,"featured_media":18772,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"swell_btn_cv_data":"","footnotes":"","vk-ltc-link":"","vk-ltc-target":""},"categories":[361],"tags":[],"class_list":["post-18764","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-css"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/posts\/18764","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/comments?post=18764"}],"version-history":[{"count":1,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/posts\/18764\/revisions"}],"predecessor-version":[{"id":18773,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/posts\/18764\/revisions\/18773"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/media\/18772"}],"wp:attachment":[{"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/media?parent=18764"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/categories?post=18764"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/tags?post=18764"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}