{"id":19329,"date":"2026-07-28T13:57:45","date_gmt":"2026-07-28T13:57:45","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=19329"},"modified":"2026-07-28T15:00:20","modified_gmt":"2026-07-28T15:00:20","slug":"browser-display-differences","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/browser-display-differences\/","title":{"rendered":"Safari\u3068Chrome\u3067\u8868\u793a\u304c\u5d29\u308c\u308b\u539f\u56e0\u3068\u76f4\u3057\u65b9\uff5c\u5dee\u7570\u5bfe\u7b56"},"content":{"rendered":"<p><!-- roam:retrofit18209 --><\/p>\n<div class=\"swell-block-balloon\">\n<div class=\"c-balloon -bln-left\" data-col=\"gray\">\n<div class=\"c-balloon__icon -square\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-14.40.37.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u751f\u5f92<\/span><\/div>\n<div class=\"c-balloon__body -speaking -border-none\">\n<div class=\"c-balloon__text\">\n<p><strong>Chrome\u3067\u306f\u5b8c\u74a7\u306a\u306e\u306bSafari\u3067\u5d29\u308c\u308b\u3093\u3067\u3059\u2026\u30d6\u30e9\u30a6\u30b6\u3054\u3068\u306e\u5dee\u3063\u3066\u3069\u3046\u5bfe\u7b56\u3057\u307e\u3059\u304b\uff1f<\/strong><\/p>\n<p><span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<div class=\"swell-block-balloon\">\n<div class=\"c-balloon -bln-right\" data-col=\"gray\">\n<div class=\"c-balloon__icon -square\"><img decoding=\"async\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2025\/06\/\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8-2025-06-15-15.11.23.jpg\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">\u30da\u30f3\u535a\u58eb<\/span><\/div>\n<div class=\"c-balloon__body -speaking -border-none\">\n<div class=\"c-balloon__text\">\n<p><strong>\u30ea\u30bb\u30c3\u30c8CSS\u3067\u521d\u671f\u5024\u3092\u63c3\u3048\u308b\u306e\u304c\u57fa\u672c\u3060\u3088\u3002\u3042\u3068\u306fSafari\u7279\u6709\u306e\u30af\u30bb\uff08100vh\u3084sticky\uff09\u3092\u77e5\u3063\u3066\u304a\u304f\u3068\u5d29\u308c\u304c\u6fc0\u6e1b\u3059\u308b\u3002\u4eca\u65e5\u306f\u5b9a\u756a\u306e\u5bfe\u7b56\u3092\u307e\u3068\u3081\u308b\u306d\u3002<\/strong><\/p>\n<p><span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<p class=\"wp-block-paragraph\">\u300cChrome\u3067\u306f\u5b8c\u74a7\u306b\u898b\u3048\u308b\u306e\u306b\u3001Safari\u3067\u958b\u304f\u3068\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u5d29\u308c\u308b\u300d\u300ciPhone\u3067\u78ba\u8a8d\u3057\u305f\u3089\u6587\u5b57\u30b5\u30a4\u30ba\u304c\u304a\u304b\u3057\u3044\u300d\u2015\u2015Web\u30b5\u30a4\u30c8\u5236\u4f5c\u3067\u3053\u3046\u3057\u305f\u60a9\u307f\u306b\u3076\u3064\u304b\u3063\u305f\u3053\u3068\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u30d6\u30e9\u30a6\u30b6\u9593\u306e\u8868\u793a\u5dee\u7570\u306f\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u958b\u767a\u306b\u304a\u3051\u308b\u983b\u51fa\u554f\u984c\u306e\u3072\u3068\u3064\u3067\u3001\u521d\u5fc3\u8005\u304b\u3089\u7d4c\u9a13\u8005\u307e\u3067\u591a\u304f\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u3092\u60a9\u307e\u305b\u3066\u3044\u307e\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u8868\u793a\u5d29\u308c\u304c\u8d77\u304d\u308b\u6839\u672c\u7684\u306a\u539f\u56e0\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u3054\u3068\u306bHTML\u3084CSS\u306e\u89e3\u91c8\u30a8\u30f3\u30b8\u30f3\u304c\u7570\u306a\u308b\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002Safari\u306fWebKit\u3001Chrome\u306fBlink\u3001Firefox\u306fGecko\u3068\u3044\u3063\u305f\u72ec\u81ea\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u3092\u642d\u8f09\u3057\u3066\u304a\u308a\u3001\u540c\u3058CSS\u30b3\u30fc\u30c9\u3092\u4e0e\u3048\u3066\u3082\u5fae\u5999\u306b\u7570\u306a\u308b\u63cf\u753b\u7d50\u679c\u3092\u8fd4\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30d6\u30e9\u30a6\u30b6\u5dee\u7570\u304c\u751f\u307e\u308c\u308b\u30e1\u30ab\u30cb\u30ba\u30e0\u304b\u3089\u59cb\u307e\u308a\u3001Safari\u7279\u6709\u306e\u554f\u984c\u70b9\u3001iOS\u74b0\u5883\u3067\u306e\u6ce8\u610f\u4e8b\u9805\u3001\u305d\u3057\u3066\u5b9f\u8df5\u7684\u306a\u89e3\u6c7a\u7b56\u307e\u3067\u4f53\u7cfb\u7684\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002\u30b3\u30fc\u30c9\u4f8b\u3092\u8c4a\u5bcc\u306b\u7528\u610f\u3057\u305f\u306e\u3067\u3001\u30b3\u30d4\u30da\u3057\u3066\u3059\u3050\u306b\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<ul class=\"wp-block-list\">\n<li>\u30d6\u30e9\u30a6\u30b6\u3054\u3068\u306b\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u304c\u7570\u306a\u308b\u7406\u7531\u3068\u5f71\u97ff\u7bc4\u56f2<\/li>\n<li>\u30ea\u30bb\u30c3\u30c8CSS\u30fb\u30ce\u30fc\u30de\u30e9\u30a4\u30baCSS\u3067\u5dee\u7570\u3092\u5438\u53ce\u3059\u308b\u65b9\u6cd5<\/li>\n<li>Safari\u3060\u3051\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u304f\u305a\u308c\u308bCSS\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5bfe\u51e6\u6cd5<\/li>\n<li>iOS\u306e\u6163\u6027\u30b9\u30af\u30ed\u30fc\u30eb\u30fb\u30d5\u30a9\u30f3\u30c8\u81ea\u52d5\u62e1\u5927\u30fb100vh\u554f\u984c\u306e\u89e3\u6c7a\u7b56<\/li>\n<li>@supports\u3092\u4f7f\u3063\u305f\u30d6\u30e9\u30a6\u30b6\u5225\u30b9\u30bf\u30a4\u30eb\u5206\u5c90\u306e\u66f8\u304d\u65b9<\/li>\n<li>Autoprefixer\u3067\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u81ea\u52d5\u4ed8\u4e0e\u3059\u308b\u624b\u9806<\/li>\n<\/ul>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u5dee\u7570\u304c\u751f\u307e\u308c\u308b\u6839\u672c\u7684\u306a\u7406\u7531<\/h2>\n<figure class=\"wp-block-image size-large\" data-dia=\"19329-1\"><img decoding=\"async\" width=\"1568\" height=\"389\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-1.png\" alt=\"\u5dee\u7570\u306e\u767a\u751f\u6e90\" class=\"wp-image-19429\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-1.png 1568w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-1-768x191.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-1-1536x381.png 1536w\" sizes=\"(max-width: 1568px) 100vw, 1568px\" \/><\/figure>\n<p class=\"wp-block-paragraph\">\u8868\u793a\u5d29\u308c\u3092\u6839\u672c\u304b\u3089\u89e3\u6c7a\u3059\u308b\u306b\u306f\u3001\u306a\u305c\u30d6\u30e9\u30a6\u30b6\u9593\u3067\u5dee\u7570\u304c\u751f\u307e\u308c\u308b\u306e\u304b\u3092\u7406\u89e3\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e3b\u306a\u539f\u56e0\u306f3\u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u306e\u9055\u3044<\/h3>\n<p class=\"wp-block-paragraph\">\u30d6\u30e9\u30a6\u30b6\u306fHTML\u3068CSS\u3092\u89e3\u6790\u3057\u3066\u753b\u9762\u306b\u63cf\u753b\u3059\u308b\u305f\u3081\u306e\u300c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u30a8\u30f3\u30b8\u30f3\u300d\uff08\u30ec\u30a4\u30a2\u30a6\u30c8\u30a8\u30f3\u30b8\u30f3\u3068\u3082\u547c\u3070\u308c\u307e\u3059\uff09\u3092\u5185\u8535\u3057\u3066\u3044\u307e\u3059\u3002\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u306e\u30a8\u30f3\u30b8\u30f3\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n<ul class=\"wp-block-list\">\n<li><strong><span class=\"swl-marker mark_yellow\">Chrome\u30fbEdge\u30fbOpera<\/span><\/strong>\uff1aBlink\uff08Chromium\u30d9\u30fc\u30b9\uff09<\/li>\n<li><strong><span class=\"swl-marker mark_yellow\">Safari\uff08macOS\u30fbiOS\uff09<\/span><\/strong>\uff1aWebKit<\/li>\n<li><strong><span class=\"swl-marker mark_yellow\">Firefox<\/span><\/strong>\uff1aGecko<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">Blink\u306f\u3082\u3068\u3082\u3068WebKit\u304b\u3089\u30d5\u30a9\u30fc\u30af\u3057\u3066\u72ec\u81ea\u306b\u9032\u5316\u3057\u305f\u305f\u3081\u3001\u57fa\u672c\u7684\u306a\u90e8\u5206\u306f\u4f3c\u3066\u3044\u307e\u3059\u304c\u3001\u65b0\u3057\u3044CSS\u6a5f\u80fd\u3078\u306e\u5bfe\u5fdc\u901f\u5ea6\u3084\u7d30\u304b\u3044\u63cf\u753b\u30eb\u30fc\u30eb\u306b\u5dee\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306bSafari\u306fApple\u304c\u72ec\u81ea\u8def\u7dda\u3067\u958b\u767a\u3092\u7d9a\u3051\u3066\u3044\u308b\u305f\u3081\u3001\u4ed6\u306e\u30d6\u30e9\u30a6\u30b6\u3068\u306e\u5dee\u7570\u304c\u751f\u3058\u3084\u3059\u3044\u50be\u5411\u306b\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3068\u4ed5\u69d8\u5b9f\u88c5\u306e\u5dee\u7570<\/h3>\n<p class=\"wp-block-paragraph\">CSS\u65b0\u6a5f\u80fd\u306f\u3001W3C\u3067\u4ed5\u69d8\u304c\u78ba\u5b9a\u3059\u308b\u524d\u306b\u5404\u30d6\u30e9\u30a6\u30b6\u304c\u5148\u884c\u5b9f\u88c5\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u969b\u306b\u300c\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u300d\uff08\u63a5\u982d\u8f9e\uff09\u3092\u4ed8\u3051\u3066\u5b9f\u9a13\u7684\u306b\u63d0\u4f9b\u3055\u308c\u307e\u3059\u3002<\/p>\n<ul class=\"wp-block-list\">\n<li><code>-webkit-<\/code>\uff1aSafari\u30fb\u65e7Chrome\uff08WebKit\u30a8\u30f3\u30b8\u30f3\uff09<\/li>\n<li><code>-moz-<\/code>\uff1aFirefox\uff08Gecko\u30a8\u30f3\u30b8\u30f3\uff09<\/li>\n<li><code>-ms-<\/code>\uff1aInternet Explorer\u30fb\u65e7Edge<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">\u73fe\u5728\u306f\u307b\u3068\u3093\u3069\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u6a19\u6e96\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u7279\u5b9a\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\uff08<code>-webkit-appearance<\/code>\u3084<code>-webkit-text-stroke<\/code>\u306a\u3069\uff09\u306f\u4f9d\u7136\u3068\u3057\u3066\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u4ed8\u304d\u3067\u306a\u3044\u3068Safari\u3067\u52d5\u4f5c\u3057\u306a\u3044\u30b1\u30fc\u30b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b9\u30bf\u30a4\u30eb\uff08User Agent Stylesheet\uff09<\/h3>\n<p class=\"wp-block-paragraph\">\u5404\u30d6\u30e9\u30a6\u30b6\u306fHTML\u30bf\u30b0\u306b\u5bfe\u3057\u3066\u72ec\u81ea\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b9\u30bf\u30a4\u30eb\uff08User Agent Stylesheet\uff09\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002\u305f\u3068\u3048\u3070<code>&lt;button&gt;<\/code>\u8981\u7d20\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u898b\u305f\u76ee\u3001<code>&lt;ul&gt;<\/code>\u306emargin\/padding\u306e\u5024\u3001<code>&lt;input&gt;<\/code>\u306e\u30d5\u30a9\u30f3\u30c8\u306a\u3069\u304c\u5fae\u5999\u306b\u7570\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5dee\u7570\u304c\u30ea\u30bb\u30c3\u30c8CSS\u3092\u66f8\u304b\u306a\u3044\u9650\u308a\u8868\u793a\u5d29\u308c\u306e\u6e29\u5e8a\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">\u30ea\u30bb\u30c3\u30c8CSS\u30fb\u30ce\u30fc\u30de\u30e9\u30a4\u30baCSS\u3067\u5dee\u7570\u3092\u5438\u53ce\u3059\u308b<\/h2>\n<figure class=\"wp-block-image size-large\" data-dia=\"19329-2\"><img decoding=\"async\" width=\"1568\" height=\"554\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-2.png\" alt=\"\u30ea\u30bb\u30c3\u30c8 \u3068 Normalize\" class=\"wp-image-19430\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-2.png 1568w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-2-768x271.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-2-1536x543.png 1536w\" sizes=\"(max-width: 1568px) 100vw, 1568px\" \/><\/figure>\n<p class=\"wp-block-paragraph\">\u30d6\u30e9\u30a6\u30b6\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b9\u30bf\u30a4\u30eb\u5dee\u7570\u3092\u5438\u53ce\u3059\u308b\u6700\u521d\u306e\u30b9\u30c6\u30c3\u30d7\u304c\u300c\u30ea\u30bb\u30c3\u30c8CSS\u300d\u307e\u305f\u306f\u300c\u30ce\u30fc\u30de\u30e9\u30a4\u30baCSS\u300d\u306e\u5c0e\u5165\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u7279\u5fb4\u3068\u4f7f\u3044\u65b9\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30ea\u30bb\u30c3\u30c8CSS\u3068\u30ce\u30fc\u30de\u30e9\u30a4\u30baCSS\u306e\u9055\u3044<\/h3>\n<p class=\"wp-block-paragraph\">2\u3064\u306e\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u306f\u660e\u78ba\u306a\u601d\u60f3\u306e\u9055\u3044\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul class=\"wp-block-list\">\n<li><strong>\u30ea\u30bb\u30c3\u30c8CSS<\/strong>\uff1a\u3059\u3079\u3066\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b9\u30bf\u30a4\u30eb\u30920\u306b\u30ea\u30bb\u30c3\u30c8\u3059\u308b\u3002\u81ea\u5206\u3067\u30bc\u30ed\u304b\u3089\u7d44\u307f\u7acb\u3066\u305f\u3044\u5834\u5408\u306b\u5411\u304f\u3002<\/li>\n<li><strong>\u30ce\u30fc\u30de\u30e9\u30a4\u30baCSS\uff08Normalize.css\uff09<\/strong>\uff1a\u30d6\u30e9\u30a6\u30b6\u9593\u306e\u5dee\u7570\u3060\u3051\u3092\u5747\u4e00\u5316\u3057\u3001\u6709\u7528\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\u306f\u6b8b\u3059\u3002\u5b9f\u7528\u7684\u3067\u3088\u304f\u4f7f\u308f\u308c\u308b\u3002<\/li>\n<\/ul>\n<p class=\"wp-block-paragraph\">\u73fe\u4ee3\u306eWeb\u5236\u4f5c\u3067\u306f\u3001Normalize.css\u3092\u30d9\u30fc\u30b9\u306b\u3057\u3064\u3064\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u56fa\u6709\u306e\u30ea\u30bb\u30c3\u30c8\u3092\u4e0a\u4e57\u305b\u3059\u308b\u30cf\u30a4\u30d6\u30ea\u30c3\u30c9\u624b\u6cd5\u304c\u4e3b\u6d41\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30e2\u30c0\u30f3CSS\u30ea\u30bb\u30c3\u30c8\u306e\u5b9f\u88c5\u4f8b<\/h3>\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u306f2024\u5e74\u73fe\u5728\u306e\u5b9f\u8df5\u7684\u306aCSS\u30ea\u30bb\u30c3\u30c8\u3067\u3059\u3002box-sizing\u306e\u7d71\u4e00\u3001\u4e0d\u8981\u306amargin\u9664\u53bb\u3001\u753b\u50cf\u306e\u30d6\u30ed\u30c3\u30af\u5316\u306a\u3069\u5fc5\u8981\u6700\u4f4e\u9650\u306e\u5747\u4e00\u5316\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30e2\u30c0\u30f3CSS\u30ea\u30bb\u30c3\u30c8 *\/\n*,\n*::before,\n*::after {\n  box-sizing: border-box;\n  margin: 0;\n  padding: 0;\n}\n\nhtml {\n  font-size: 16px;\n  -webkit-text-size-adjust: 100%; \/* iOS\u81ea\u52d5\u30d5\u30a9\u30f3\u30c8\u62e1\u5927\u3092\u7121\u52b9\u5316 *\/\n  text-size-adjust: 100%;\n}\n\nbody {\n  line-height: 1.5;\n  -webkit-font-smoothing: antialiased; \/* macOS\/iOS \u30d5\u30a9\u30f3\u30c8\u30a2\u30f3\u30c1\u30a8\u30a4\u30ea\u30a2\u30b9 *\/\n  font-family: \"Hiragino Kaku Gothic ProN\", \"Hiragino Sans\", Meiryo, sans-serif;\n}\n\nimg,\nvideo,\ncanvas,\nsvg {\n  display: block;\n  max-width: 100%;\n}\n\ninput,\nbutton,\ntextarea,\nselect {\n  font: inherit; \/* \u30d6\u30e9\u30a6\u30b6\u30c7\u30d5\u30a9\u30eb\u30c8\u306e\u30d5\u30a9\u30f3\u30c8\u7d99\u627f\u554f\u984c\u3092\u89e3\u6d88 *\/\n}\n\np,\nh1,\nh2,\nh3,\nh4,\nh5,\nh6 {\n  overflow-wrap: break-word;\n}\n\nul,\nol {\n  list-style: none;\n}\n\na {\n  color: inherit;\n  text-decoration: none;\n}\n<\/code><\/pre>\n<\/div>\n<h3 class=\"wp-block-heading\">Normalize.css\u306eCDN\u7d4c\u7531\u3067\u306e\u5c0e\u5165<\/h3>\n<p class=\"wp-block-paragraph\">Normalize.css\u3092CDN\u304b\u3089\u8aad\u307f\u8fbc\u3080\u5834\u5408\u306f\u3001\u81ea\u5206\u306eCSS\u3088\u308a\u524d\u306b\u8a18\u8ff0\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- head\u5185\u306b\u8ffd\u52a0 --&gt;\n&lt;link rel=\"stylesheet\" href=\"https:\/\/cdnjs.cloudflare.com\/ajax\/libs\/normalize\/8.0.1\/normalize.min.css\"&gt;\n&lt;link rel=\"stylesheet\" href=\"style.css\"&gt;\n<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">npm\u3092\u4f7f\u3063\u3066\u3044\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306a\u3089\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3066\u76f4\u63a5\u30a4\u30f3\u30dd\u30fc\u30c8\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* npm\u3067\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u5f8c\u3001CSS\u30d5\u30a1\u30a4\u30eb\u5185\u3067\u30a4\u30f3\u30dd\u30fc\u30c8 *\/\n@import 'normalize.css';\n\n\/* \u4ee5\u4e0b\u306b\u81ea\u5206\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u66f8\u304f *\/\n<\/code><\/pre>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">Safari\u7279\u6709\u306e\u8868\u793a\u5d29\u308c\u3068\u5bfe\u51e6\u6cd5<\/h2>\n<figure class=\"wp-block-image size-large\" data-dia=\"19329-3\"><img decoding=\"async\" width=\"1568\" height=\"669\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-3.png\" alt=\"Safari\u306e\u30af\u30bb\u3068\u5bfe\u51e6\" class=\"wp-image-19431\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-3.png 1568w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-3-768x328.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-3-1536x655.png 1536w\" sizes=\"(max-width: 1568px) 100vw, 1568px\" \/><\/figure>\n<p class=\"wp-block-paragraph\">Chrome\u3067\u306f\u6b63\u5e38\u306b\u8868\u793a\u3055\u308c\u3066\u3082Safari\u3060\u3051\u5d29\u308c\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u554f\u984c\u304c\u539f\u56e0\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u539f\u56e0\u3068\u5bfe\u51e6\u6cd5\u3092\u5177\u4f53\u7684\u306a\u30b3\u30fc\u30c9\u3068\u3068\u3082\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">100vh\u554f\u984c\uff08\u30e2\u30d0\u30a4\u30ebSafari\u306e\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\uff09<\/h3>\n<p class=\"wp-block-paragraph\">\u30e2\u30d0\u30a4\u30ebSafari\u3067\u306f\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u304c\u8868\u793a\u30fb\u975e\u8868\u793a\u3067\u5207\u308a\u66ff\u308f\u308b\u305f\u3081\u3001<code>100vh<\/code>\u304c\u5b9f\u969b\u306e\u8868\u793a\u9818\u57df\u3088\u308a\u5927\u304d\u304f\u306a\u308a\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u96a0\u308c\u305f\u308a\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u767a\u751f\u3057\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG\uff1a\u30e2\u30d0\u30a4\u30ebSafari\u3067\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306e\u9ad8\u3055\u5206\u304c\u306f\u307f\u51fa\u3059 *\/\n.hero {\n  height: 100vh;\n}\n\n\/* OK\uff1asvh\u3092\u4f7f\u3046\uff08Safari 16\u4ee5\u964d\u5bfe\u5fdc\uff09 *\/\n.hero {\n  height: 100svh; \/* small viewport height = \u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u8fbc\u307f\u306e\u6700\u5c0f\u9ad8\u3055 *\/\n}\n\n\/* OK\uff1advh\u3092\u4f7f\u3046\uff08\u52d5\u7684\u306b\u5909\u5316\u3059\u308b\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u9ad8\u3055\uff09 *\/\n.hero {\n  height: 100dvh;\n}\n\n\/* \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u4ed8\u304d\u306e\u66f8\u304d\u65b9\uff08\u53e4\u3044Safari\u306b\u3082\u5bfe\u5fdc\uff09 *\/\n.hero {\n  height: 100vh; \/* \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af *\/\n  height: 100svh;\n}\n<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">Safari 15\u4ee5\u524d\u3092\u5bfe\u8c61\u306b\u3059\u308b\u5834\u5408\u306f\u3001JavaScript\u3067window.innerHeight\u3092\u53d6\u5f97\u3057\u3066CSS\u5909\u6570\u306b\u30bb\u30c3\u30c8\u3059\u308b\u65b9\u6cd5\u3082\u6709\u52b9\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-javascript\" data-lang=\"JavaScript\"><code>\/\/ iOS Safari\u306e\u5b9f\u969b\u306e\u8868\u793a\u9ad8\u3055\u3092CSS\u5909\u6570\u306b\u30bb\u30c3\u30c8\nfunction setVh() {\n  const vh = window.innerHeight * 0.01;\n  document.documentElement.style.setProperty('--vh', `${vh}px`);\n}\n\nsetVh();\nwindow.addEventListener('resize', setVh);\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* CSS\u5909\u6570 --vh \u3092\u4f7f\u3063\u305f\u8a18\u8ff0 *\/\n.hero {\n  height: calc(var(--vh, 1vh) * 100);\n}\n<\/code><\/pre>\n<\/div>\n<h3 class=\"wp-block-heading\">position: sticky \u304cSafari\u3067\u52b9\u304b\u306a\u3044<\/h3>\n<p class=\"wp-block-paragraph\"><code>position: sticky<\/code>\u306fSafari 13\u4ee5\u964d\u304b\u3089\u6a19\u6e96\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u304c\u3001<strong><span class=\"swl-marker mark_yellow\">\u89aa\u8981\u7d20\u306boverflow: hidden\u307e\u305f\u306foverflow: auto\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u3068\u52d5\u4f5c\u3057\u306a\u304f\u306a\u308a\u307e\u3059<\/span><\/strong>\u3002\u3053\u308c\u306fChrome\/Firefox\u3067\u3082\u540c\u69d8\u3067\u3059\u304c\u3001Safari\u3067\u3088\u308a\u9855\u8457\u306b\u554f\u984c\u304c\u51fa\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG\uff1a\u89aa\u8981\u7d20\u306eoverflow\u304csticky\u3092\u7121\u52b9\u306b\u3059\u308b *\/\n.parent {\n  overflow: hidden; \/* \u3053\u308c\u304c\u3042\u308b\u3068sticky\u304c\u6a5f\u80fd\u3057\u306a\u3044 *\/\n}\n\n.sticky-element {\n  position: -webkit-sticky; \/* Safari\u5bfe\u5fdc\u306e\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9 *\/\n  position: sticky;\n  top: 0;\n}\n\n\/* OK\uff1a\u89aa\u306eoverflow\u3092\u898b\u76f4\u3059 *\/\n.parent {\n  \/* overflow: hidden \u3092\u524a\u9664\u3059\u308b\u304b\u3001\u5225\u306e\u65b9\u6cd5\u3067\u5b9f\u88c5 *\/\n}\n\n.sticky-element {\n  position: -webkit-sticky;\n  position: sticky;\n  top: 0;\n  z-index: 100;\n}\n<\/code><\/pre>\n<\/div>\n<h3 class=\"wp-block-heading\">Flexbox \u306e gap \u30d7\u30ed\u30d1\u30c6\u30a3<\/h3>\n<p class=\"wp-block-paragraph\"><code>gap<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\uff08\u65e7<code>grid-gap<\/code>\uff09\u306fFlexbox\u3067\u306e\u4f7f\u7528\u304cSafari 14.1\u4ee5\u964d\u306b\u3057\u304b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u305b\u3093\u3002Safari 14.0\u4ee5\u524d\u3067\u306f<code>gap<\/code>\u304cFlexbox\u3067\u7121\u8996\u3055\u308c\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* Safari 14.0\u4ee5\u524d\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u65b9\u6cd5 *\/\n.flex-container {\n  display: flex;\n  flex-wrap: wrap;\n}\n\n\/* \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\uff1amargin \u3067\u4ee3\u66ff *\/\n.flex-container > * + * {\n  margin-left: 16px;\n}\n\n\/* @supports\u3067gap\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u3060\u3051\u306b\u9069\u7528 *\/\n@supports (gap: 16px) {\n  .flex-container {\n    gap: 16px;\n  }\n  .flex-container > * + * {\n    margin-left: 0; \/* \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u30ea\u30bb\u30c3\u30c8 *\/\n  }\n}\n<\/code><\/pre>\n<\/div>\n<h3 class=\"wp-block-heading\">date input \u304c Safari \u3067\u30c6\u30ad\u30b9\u30c8\u6b04\u306b\u306a\u308b<\/h3>\n<p class=\"wp-block-paragraph\"><code>&lt;input type=\"date\"&gt;<\/code>\u306fChrome\u3067\u306f\u65e5\u4ed8\u30d4\u30c3\u30ab\u30fc\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u304c\u3001<strong><span class=\"swl-marker mark_yellow\">Safari\u306emacOS\u7248\u3067\u306fiOS 14.5\u4ee5\u964d\u307e\u3067\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u305b\u3093\u3067\u3057\u305f<\/span><\/strong>\u3002macOS Safari 14.1\u4ee5\u964d\u3067\u306f\u5bfe\u5fdc\u6e08\u307f\u3067\u3059\u304c\u3001\u53e4\u3044\u74b0\u5883\u3092\u8003\u616e\u3059\u308b\u306a\u3089\u4ee3\u66ff\u624b\u6bb5\u3092\u7528\u610f\u3057\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- type=\"date\"\u304c\u672a\u5bfe\u5fdc\u306e\u5834\u5408\u306e\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af --&gt;\n&lt;input type=\"date\" id=\"date-input\" class=\"date-field\"&gt;\n\n&lt;script&gt;\n\/\/ input type=\"date\"\u306e\u5bfe\u5fdc\u78ba\u8a8d\nconst input = document.createElement('input');\ninput.setAttribute('type', 'date');\n\nif (input.type === 'text') {\n  \/\/ \u672a\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\uff1aplaceholder\u3092\u8a2d\u5b9a\u3057\u3066\u30e6\u30fc\u30b6\u30fc\u306b\u5165\u529b\u5f62\u5f0f\u3092\u4f1d\u3048\u308b\n  document.getElementById('date-input').placeholder = 'YYYY-MM-DD';\n  \/\/ \u5fc5\u8981\u306b\u5fdc\u3058\u3066flatpickr\u7b49\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u4ee3\u66ff\n}\n&lt;\/script&gt;\n<\/code><\/pre>\n<\/div>\n<h3 class=\"wp-block-heading\">-webkit-appearance \u306b\u3088\u308b\u30d5\u30a9\u30fc\u30e0\u8981\u7d20\u306e\u30b9\u30bf\u30a4\u30ea\u30f3\u30b0<\/h3>\n<p class=\"wp-block-paragraph\">Safari\u306f\u30d5\u30a9\u30fc\u30e0\u30d1\u30fc\u30c4\u306bOS\u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u30b9\u30bf\u30a4\u30eb\u3092\u9069\u7528\u3057\u307e\u3059\u3002\u3053\u308c\u3092\u30ea\u30bb\u30c3\u30c8\u3057\u3066\u30ab\u30b9\u30bf\u30e0\u30b9\u30bf\u30a4\u30eb\u3092\u5f53\u3066\u308b\u306b\u306f<code>-webkit-appearance: none<\/code>\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30dc\u30bf\u30f3\u30fb\u5165\u529b\u6b04\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u30b9\u30bf\u30a4\u30eb\u3092\u30ea\u30bb\u30c3\u30c8 *\/\nbutton,\ninput[type=\"submit\"],\ninput[type=\"button\"],\ninput[type=\"reset\"] {\n  -webkit-appearance: none;\n  appearance: none;\n  border-radius: 0; \/* iOS\u3067\u306f\u89d2\u4e38\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u4ed8\u304f *\/\n  cursor: pointer;\n}\n\ninput[type=\"text\"],\ninput[type=\"email\"],\ninput[type=\"tel\"],\ntextarea,\nselect {\n  -webkit-appearance: none;\n  appearance: none;\n  border-radius: 0;\n}\n\n\/* select\u306e\u77e2\u5370\u30a2\u30a4\u30b3\u30f3\u3092\u30ab\u30b9\u30bf\u30de\u30a4\u30ba *\/\nselect {\n  background-image: url(\"data:image\/svg+xml,...\");\n  background-repeat: no-repeat;\n  background-position: right 12px center;\n  padding-right: 40px;\n}\n<\/code><\/pre>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">iOS\u306e\u6163\u6027\u30b9\u30af\u30ed\u30fc\u30eb\u30fb\u30d5\u30a9\u30f3\u30c8\u81ea\u52d5\u62e1\u5927\u3078\u306e\u5bfe\u51e6<\/h2>\n<p class=\"wp-block-paragraph\">iOS Safari\u7279\u6709\u306e\u52d5\u4f5c\u3068\u3057\u3066\u3001\u6163\u6027\u30b9\u30af\u30ed\u30fc\u30eb\u3068\u30d5\u30a9\u30f3\u30c8\u81ea\u52d5\u62e1\u5927\u304c\u3042\u308a\u307e\u3059\u3002\u3069\u3061\u3089\u3082UX\u306b\u76f4\u7d50\u3059\u308b\u554f\u984c\u306e\u305f\u3081\u3001\u9069\u5207\u306b\u5bfe\u51e6\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u6163\u6027\u30b9\u30af\u30ed\u30fc\u30eb\uff08momentum scrolling\uff09\u306e\u5236\u5fa1<\/h3>\n<p class=\"wp-block-paragraph\">iOS\u3067\u306f\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u53ef\u80fd\u306a\u8981\u7d20\u306b<code>-webkit-overflow-scrolling: touch<\/code>\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u3067\u30cd\u30a4\u30c6\u30a3\u30d6\u30a2\u30d7\u30ea\u306e\u3088\u3046\u306a\u6163\u6027\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u6709\u52b9\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001iOS 13\u4ee5\u964d\u3067\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u6163\u6027\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u304a\u308a\u3001\u3053\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306f\u975e\u63a8\u5968\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* iOS 12\u4ee5\u524d\u306e\u6163\u6027\u30b9\u30af\u30ed\u30fc\u30eb\u6709\u52b9\u5316\uff08\u73fe\u5728\u306f\u975e\u63a8\u5968\uff09 *\/\n.scroll-container {\n  overflow-y: scroll;\n  -webkit-overflow-scrolling: touch; \/* \u975e\u63a8\u5968 *\/\n}\n\n\/* iOS 13\u4ee5\u964d\uff1aoverscroll-behavior\u3067\u5236\u5fa1 *\/\n.scroll-container {\n  overflow-y: scroll;\n  overscroll-behavior-y: contain; \/* \u89aa\u8981\u7d20\u3078\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u4f1d\u642c\u3092\u9632\u3050 *\/\n}\n\n\/* \u30e2\u30fc\u30c0\u30eb\u3084\u30c9\u30ed\u30ef\u30fc\u5185\u3067\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u5236\u5fa1 *\/\n.modal-inner {\n  overflow-y: auto;\n  overscroll-behavior: contain;\n}\n<\/code><\/pre>\n<\/div>\n<h3 class=\"wp-block-heading\">iOS\u306e\u30d5\u30a9\u30f3\u30c8\u81ea\u52d5\u62e1\u5927\u3092\u6b62\u3081\u308b<\/h3>\n<p class=\"wp-block-paragraph\">iOS\u306f\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3067\u306e\u53ef\u8aad\u6027\u5411\u4e0a\u306e\u305f\u3081\u3001\u7279\u5b9a\u306e\u6761\u4ef6\u4e0b\u3067\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u3092\u81ea\u52d5\u7684\u306b\u62e1\u5927\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\uff08TextAutosizing\uff09\u3002\u3053\u308c\u3092CSS\u3067\u6291\u5236\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>html {\n  \/* iOS\u306e\u30d5\u30a9\u30f3\u30c8\u81ea\u52d5\u62e1\u5927\u3092\u7121\u52b9\u5316 *\/\n  -webkit-text-size-adjust: 100%;\n  text-size-adjust: 100%;\n}\n\n\/* \u307e\u305f\u306f\u7279\u5b9a\u306e\u30b3\u30f3\u30c6\u30ca\u3060\u3051\u306b\u9069\u7528 *\/\n.no-auto-zoom {\n  -webkit-text-size-adjust: none; \/* \u6ce8\u610f\uff1a\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3078\u306e\u5f71\u97ff\u3042\u308a *\/\n}\n<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\"><strong><span class=\"swl-marker mark_yellow\">-webkit-text-size-adjust: none\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u30d6\u30e9\u30a6\u30b6\u8a2d\u5b9a\u3067\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u3092\u5909\u66f4\u3067\u304d\u306a\u304f\u306a\u308b\u305f\u3081\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u4e0a\u597d\u307e\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/strong>\u539f\u5247<code>100%<\/code>\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"wp-block-heading\">iOS\u3067\u30c0\u30d6\u30eb\u30bf\u30c3\u30d7\u306b\u3088\u308b\u30ba\u30fc\u30e0\u3092\u9632\u3050<\/h3>\n<p class=\"wp-block-paragraph\">\u53e4\u3044iOS\u7248\u3067\u306f\u30c0\u30d6\u30eb\u30bf\u30c3\u30d7\u3067\u30ba\u30fc\u30e0\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002meta\u30bf\u30b0\u306eviewport\u8a2d\u5b9a\u3068CSS\u3067\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- viewport meta\u30bf\u30b0\uff1auser-scalable=no\u306f\u975e\u63a8\u5968\uff08\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u554f\u984c\uff09 --&gt;\n&lt;meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"&gt;\n\n&lt;!-- iOS 9.3\u4ee5\u964d\u306fuser-scalable=no\u3092\u7121\u8996\u3059\u308b\u305f\u3081\u610f\u5473\u304c\u306a\u3044 --&gt;\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* touch-action\u3067\u30c0\u30d6\u30eb\u30bf\u30c3\u30d7\u30ba\u30fc\u30e0\u3092\u9632\u3050\uff08iOS 13\u4ee5\u964d\uff09 *\/\na,\nbutton {\n  touch-action: manipulation; \/* \u30c0\u30d6\u30eb\u30bf\u30c3\u30d7\u306e\u30ba\u30fc\u30e0\u52d5\u4f5c\u3092\u7121\u52b9\u5316 *\/\n}\n<\/code><\/pre>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">@supports\u3092\u4f7f\u3063\u305f\u30d6\u30e9\u30a6\u30b6\u5225\u30b9\u30bf\u30a4\u30eb\u5206\u5c90<\/h2>\n<p class=\"wp-block-paragraph\"><code>@supports<\/code>\uff08\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u30af\u30a8\u30ea\uff09\u3092\u4f7f\u3046\u3068\u3001\u7279\u5b9a\u306eCSS\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30d6\u30e9\u30a6\u30b6\u3060\u3051\u306b\u30b9\u30bf\u30a4\u30eb\u3092\u9069\u7528\u3067\u304d\u307e\u3059\u3002\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u5e45\u5e83\u304f\u4f7f\u3048\u307e\u3059\u3002<\/p>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u57fa\u672c\u69cb\u6587 *\/\n@supports (\u30d7\u30ed\u30d1\u30c6\u30a3: \u5024) {\n  \/* \u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u306b\u3060\u3051\u9069\u7528 *\/\n}\n\n\/* \u975e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u306b\u3060\u3051\u9069\u7528 *\/\n@supports not (\u30d7\u30ed\u30d1\u30c6\u30a3: \u5024) {\n  \/* \u975e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u306b\u3060\u3051\u9069\u7528 *\/\n}\n\n\/* AND\u6761\u4ef6 *\/\n@supports (display: grid) and (gap: 16px) {\n  .container {\n    display: grid;\n    gap: 16px;\n  }\n}\n\n\/* \u30b3\u30f3\u30c6\u30ca\u30af\u30a8\u30ea\u5bfe\u5fdc\u30c1\u30a7\u30c3\u30af *\/\n@supports (container-type: inline-size) {\n  .card-wrapper {\n    container-type: inline-size;\n  }\n\n  @container (min-width: 400px) {\n    .card {\n      display: flex;\n    }\n  }\n}\n\n\/* \u30cd\u30a4\u30c6\u30a3\u30d6\u306e\u30cd\u30b9\u30c8CSS\u5bfe\u5fdc\u30c1\u30a7\u30c3\u30af *\/\n@supports selector(&amp; > *) {\n  .parent {\n    &amp; > .child {\n      color: red;\n    }\n  }\n}\n<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">@supports\u3092\u4f7f\u3046\u3053\u3068\u3067\u30d7\u30ed\u30b0\u30ec\u30c3\u30b7\u30d6\u30a8\u30f3\u30cf\u30f3\u30b9\u30e1\u30f3\u30c8\uff08\u57fa\u672c\u6a5f\u80fd\u3092\u5168\u30d6\u30e9\u30a6\u30b6\u306b\u3001\u62e1\u5f35\u6a5f\u80fd\u3092\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u3060\u3051\u306b\u63d0\u4f9b\u3059\u308b\u624b\u6cd5\uff09\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">Autoprefixer\u3067\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u81ea\u52d5\u4ed8\u4e0e\u3059\u308b<\/h2>\n<p class=\"wp-block-paragraph\">\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u624b\u66f8\u304d\u3059\u308b\u306e\u306f\u975e\u52b9\u7387\u3067\u6f0f\u308c\u3082\u751f\u3058\u3084\u3059\u3044\u3067\u3059\u3002PostCSS\u30d7\u30e9\u30b0\u30a4\u30f3\u306e<strong>Autoprefixer<\/strong>\u3092\u4f7f\u3048\u3070\u3001\u5bfe\u8c61\u30d6\u30e9\u30a6\u30b6\u306b\u5fc5\u8981\u306a\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u81ea\u52d5\u3067\u4ed8\u4e0e\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">PostCSS + Autoprefixer\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/h3>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\uff08npm\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u524d\u63d0\uff09 *\/\n\/* npm install --save-dev postcss autoprefixer postcss-cli *\/\n\n\/* postcss.config.js *\/\nmodule.exports = {\n  plugins: [\n    require('autoprefixer')\n  ]\n}\n<\/code><\/pre>\n<\/div>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- package.json\u306escripts\u306b\u8ffd\u52a0 --&gt;\n&lt;!-- \"build:css\": \"postcss src\/style.css -o dist\/style.css\" --&gt;\n\n&lt;!-- .browserslistrc\u30d5\u30a1\u30a4\u30eb\u3067\u5bfe\u8c61\u30d6\u30e9\u30a6\u30b6\u3092\u6307\u5b9a --&gt;\n&lt;!-- > 0.5%, last 2 versions, Safari >= 14, iOS >= 14, not dead --&gt;\n<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">Browserslist\u3067\u5bfe\u8c61\u30d6\u30e9\u30a6\u30b6\u3092\u660e\u793a\u3059\u308b\u3053\u3068\u3067\u3001\u672c\u5f53\u306b\u5fc5\u8981\u306a\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3060\u3051\u304c\u4ed8\u4e0e\u3055\u308c\u307e\u3059\u3002\u904e\u53bb\u306e\u907a\u7269\u7684\u306a\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3067\u80a5\u5927\u5316\u3059\u308b\u3053\u3068\u3092\u9632\u3052\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">Autoprefixer\u5909\u63db\u306e\u4f8b<\/h3>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u5165\u529b\uff08\u30bd\u30fc\u30b9CSS\uff09 *\/\n.flex-container {\n  display: flex;\n  user-select: none;\n  backdrop-filter: blur(10px);\n}\n\n\/* Autoprefixer\u5909\u63db\u5f8c\u306e\u51fa\u529b *\/\n.flex-container {\n  display: -webkit-box;\n  display: -ms-flexbox;\n  display: flex;\n  -webkit-user-select: none;\n     -moz-user-select: none;\n      -ms-user-select: none;\n          user-select: none;\n  -webkit-backdrop-filter: blur(10px);\n          backdrop-filter: blur(10px);\n}\n<\/code><\/pre>\n<\/div>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u5dee\u7570\u306e\u691c\u8a3c\u65b9\u6cd5<\/h2>\n<figure class=\"wp-block-image size-large\" data-dia=\"19329-4\"><img decoding=\"async\" width=\"1568\" height=\"731\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-4.png\" alt=\"\u691c\u8a3c\u306e\u624b\u9806\" class=\"wp-image-19432\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-4.png 1568w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-4-768x358.png 768w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/dia-19329-4-1536x716.png 1536w\" sizes=\"(max-width: 1568px) 100vw, 1568px\" \/><\/figure>\n<p class=\"wp-block-paragraph\">\u30b3\u30fc\u30c9\u3092\u66f8\u3044\u305f\u3089\u5b9f\u969b\u306b\u30d6\u30e9\u30a6\u30b6\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u52b9\u7387\u7684\u306a\u691c\u8a3c\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u5b9f\u6a5f\u78ba\u8a8d\u3068iOS\u30b7\u30df\u30e5\u30ec\u30fc\u30bf<\/h3>\n<p class=\"wp-block-paragraph\">\u6700\u3082\u4fe1\u983c\u3067\u304d\u308b\u78ba\u8a8d\u65b9\u6cd5\u306f\u5b9f\u6a5f\u3067\u306e\u30c6\u30b9\u30c8\u3067\u3059\u3002Mac\u3092\u6301\u3063\u3066\u3044\u308b\u306a\u3089iOS\u30b7\u30df\u30e5\u30ec\u30fc\u30bf\uff08Xcode\u4ed8\u5c5e\uff09\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002Windows\u3067Safari\u3092\u78ba\u8a8d\u3057\u305f\u3044\u5834\u5408\u306f<strong>BrowserStack<\/strong>\u3084<strong>LambdaTest<\/strong>\u306e\u3088\u3046\u306a\u30af\u30e9\u30a6\u30c9\u30c6\u30b9\u30c8\u30b5\u30fc\u30d3\u30b9\u304c\u6709\u52b9\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">Chrome DevTools\u306e\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30e2\u30fc\u30c9<\/h3>\n<p class=\"wp-block-paragraph\">Chrome DevTools\u306e\u300c\u30c7\u30d0\u30a4\u30b9\u30c4\u30fc\u30eb\u30d0\u30fc\uff08Ctrl+Shift+M \/ Cmd+Shift+M\uff09\u300d\u3092\u4f7f\u3048\u3070\u69d8\u3005\u306a\u7aef\u672b\u30b5\u30a4\u30ba\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057<strong><span class=\"swl-marker mark_yellow\">Chrome\u306e\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u306fSafari\u306e\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u3068\u306f\u7570\u306a\u308a\u307e\u3059<\/span><\/strong>\u3002Safari\u7279\u6709\u306eCSS\u30d0\u30b0\u306e\u518d\u73fe\u306b\u306f\u5b9f\u6a5f\u304bBrowserStack\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">Safari\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3092\u4f7f\u3046<\/h3>\n<div class=\"hcb_wrap\">\n<pre class=\"prism line-numbers lang-html\" data-lang=\"HTML\"><code>&lt;!-- Safari\u958b\u767a\u8005\u30c4\u30fc\u30eb\u306e\u6709\u52b9\u5316\u624b\u9806 --&gt;\n&lt;!-- 1. Safari &gt; \u74b0\u5883\u8a2d\u5b9a &gt; \u8a73\u7d30\u30bf\u30d6 --&gt;\n&lt;!-- 2. \u300c\u30e1\u30cb\u30e5\u30fc\u30d0\u30fc\u306b\u958b\u767a\u30e1\u30cb\u30e5\u30fc\u3092\u8868\u793a\u300d\u306b\u30c1\u30a7\u30c3\u30af --&gt;\n&lt;!-- 3. iPhone\u3092Mac\u306bUSB\u63a5\u7d9a --&gt;\n&lt;!-- 4. Safari &gt; \u958b\u767a &gt; [\u30c7\u30d0\u30a4\u30b9\u540d] &gt; \u30da\u30fc\u30b8\u3092\u9078\u629e --&gt;\n&lt;!-- 5. Mac\u306eSafari\u958b\u767a\u8005\u30c4\u30fc\u30eb\u3067iOS\u306e\u5b9f\u6a5f\u30c7\u30d0\u30c3\u30b0\u304c\u53ef\u80fd --&gt;\n<\/code><\/pre>\n<\/div>\n<p class=\"wp-block-paragraph\">Mac\u306eSafari\u304b\u3089iOS\u30c7\u30d0\u30a4\u30b9\u306b\u63a5\u7d9a\u3057\u3066\u30ea\u30e2\u30fc\u30c8\u30c7\u30d0\u30c3\u30b0\u3092\u884c\u3046\u3053\u3068\u3067\u3001iOS Safari\u306e\u5b9f\u969b\u306e\u52d5\u4f5c\u3092\u78ba\u8a8d\u3057\u306a\u304c\u3089CSS\u3092\u4fee\u6b63\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u304c\u6700\u3082\u6b63\u78ba\u306a\u78ba\u8a8d\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u5dee\u7570\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h3>\n<ul class=\"wp-block-list\">\n<li>\u30d5\u30a9\u30f3\u30c8\u306e\u8868\u793a\u30fb\u30a6\u30a7\u30a4\u30c8\uff08\u7279\u306bWeb\u30d5\u30a9\u30f3\u30c8\uff09<\/li>\n<li>Flexbox \/ Grid\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u5d29\u308c<\/li>\n<li>position\u30d7\u30ed\u30d1\u30c6\u30a3\uff08sticky \/ fixed\uff09\u306e\u52d5\u4f5c<\/li>\n<li>\u30d5\u30a9\u30fc\u30e0\u8981\u7d20\uff08input \/ select \/ button\uff09\u306e\u30c7\u30b6\u30a4\u30f3<\/li>\n<li>\u30b9\u30af\u30ed\u30fc\u30eb\u52d5\u4f5c\uff08\u6163\u6027\u30fb\u30d0\u30a6\u30f3\u30b9\uff09<\/li>\n<li>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u30fb\u30c8\u30e9\u30f3\u30b8\u30b7\u30e7\u30f3\u306e\u30d5\u30ec\u30fc\u30e0\u30ec\u30fc\u30c8<\/li>\n<li>\u753b\u50cf\u30fb\u52d5\u753b\u306e\u8868\u793a\uff08WebP\u30fbAVIF\u5bfe\u5fdc\u72b6\u6cc1\uff09<\/li>\n<li>CSS\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff08CSS\u5909\u6570\uff09\u306e\u52d5\u4f5c<\/li>\n<\/ul>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<h2 class=\"wp-block-heading\">\u30d6\u30e9\u30a6\u30b6\u5dee\u7570\u5bfe\u7b56\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u307e\u3068\u3081<\/h2>\n<p class=\"wp-block-paragraph\">\u3053\u3053\u307e\u3067\u89e3\u8aac\u3057\u305f\u5185\u5bb9\u3092\u8868\u306b\u307e\u3068\u3081\u307e\u3059\u3002\u6848\u4ef6\u306e\u5192\u982d\u3067\u3053\u306e\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u3092\u53c2\u7167\u3059\u308b\u3053\u3068\u3067\u3001\u5f8c\u304b\u3089\u767a\u899a\u3059\u308b\u8868\u793a\u5d29\u308c\u3092\u5927\u5e45\u306b\u6e1b\u3089\u305b\u307e\u3059\u3002<\/p>\n<figure class=\"wp-block-table\">\n<table>\n<thead>\n<tr>\n<th>\u554f\u984c<\/th>\n<th>\u539f\u56e0<\/th>\n<th>\u5bfe\u51e6\u6cd5<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u5168\u4f53\u7684\u306a\u30c7\u30d5\u30a9\u30eb\u30c8\u5dee\u7570<\/td>\n<td>User Agent Stylesheet<\/td>\n<td>\u30ea\u30bb\u30c3\u30c8CSS \/ Normalize.css<\/td>\n<\/tr>\n<tr>\n<td>100vh\u554f\u984c<\/td>\n<td>\u30e2\u30d0\u30a4\u30ebSafari\u306e\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc<\/td>\n<td>100svh \/ 100dvh \/ JS\u5909\u6570<\/td>\n<\/tr>\n<tr>\n<td>sticky\u52d5\u4f5c\u4e0d\u826f<\/td>\n<td>\u89aa\u8981\u7d20\u306eoverflow<\/td>\n<td>\u89aa\u306eoverflow\u3092\u9664\u53bb<\/td>\n<\/tr>\n<tr>\n<td>flex gap\u304c\u52b9\u304b\u306a\u3044<\/td>\n<td>Safari 14.0\u4ee5\u524d\u306e\u975e\u5bfe\u5fdc<\/td>\n<td>@supports + margin\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30a9\u30fc\u30e0\u8981\u7d20\u306e\u30c7\u30b6\u30a4\u30f3<\/td>\n<td>Safari\u306eOS\u4f9d\u5b58\u30b9\u30bf\u30a4\u30eb<\/td>\n<td>-webkit-appearance: none<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30a9\u30f3\u30c8\u81ea\u52d5\u62e1\u5927<\/td>\n<td>iOS\u306eTextAutosizing<\/td>\n<td>-webkit-text-size-adjust: 100%<\/td>\n<\/tr>\n<tr>\n<td>\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u6f0f\u308c<\/td>\n<td>\u624b\u66f8\u304d\u306e\u7ba1\u7406\u30df\u30b9<\/td>\n<td>PostCSS + Autoprefixer<\/td>\n<\/tr>\n<tr>\n<td>date\u5165\u529b\u306e\u975e\u8868\u793a<\/td>\n<td>macOS Safari 14.0\u4ee5\u524d\u306e\u975e\u5bfe\u5fdc<\/td>\n<td>JavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u4ee3\u66ff<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n<p><!-- roam:retrofit18209-matome --><\/p>\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n<p class=\"wp-block-paragraph\">\u30d6\u30e9\u30a6\u30b6\u8868\u793a\u5dee\u306f\u3001\u307e\u305a\u30ea\u30bb\u30c3\u30c8\u3084NormalizeCSS\u3067\u521d\u671f\u5024\u3092\u63c3\u3048\u308b\u306e\u304c\u57fa\u672c\u3067\u3059\u3002\u30dd\u30a4\u30f3\u30c8\u306f\u2460Safari\u7279\u6709\u306e\u30af\u30bb\uff08100vh\u30fbsticky\u30fbdate input\uff09\u3092\u628a\u63e1\u2461@supports\u3067\u6a5f\u80fd\u3054\u3068\u306b\u5206\u5c90\u2462Autoprefixer\u3067\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u3092\u81ea\u52d5\u4ed8\u4e0e\u3001\u306e3\u70b9\u3002\u5b9f\u6a5f\u3068\u30c7\u30d9\u30ed\u30c3\u30d1\u30fc\u30c4\u30fc\u30eb\u3067\u78ba\u8a8d\u3057\u306a\u304c\u3089\u3001\u5d29\u308c\u3092\u4e00\u3064\u305a\u3064\u6f70\u3057\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><!-- withmedia-faq --><\/p>\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/h2>\n<h3 class=\"wp-block-heading\">Chrome\u3067OK\u306a\u306e\u306bSafari\u3067\u3060\u3051\u5d29\u308c\u308b\u5834\u5408\u3001\u307e\u305a\u4f55\u3092\u78ba\u8a8d\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p class=\"wp-block-paragraph\">\u307e\u305aSafari\u306e\u958b\u767a\u8005\u30c4\u30fc\u30eb\uff08\u307e\u305f\u306f\u5b9f\u6a5f+Mac\u63a5\u7d9a\u306b\u3088\u308b\u30ea\u30e2\u30fc\u30c8\u30c7\u30d0\u30c3\u30b0\uff09\u3067\u30a8\u30e9\u30fc\u30e1\u30c3\u30bb\u30fc\u30b8\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u6b21\u306b\u3001<code>position: sticky<\/code>\u306e\u89aa\u8981\u7d20\u306b<code>overflow<\/code>\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u304b\u3001<code>gap<\/code>\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5bfe\u5fdc\u72b6\u6cc1\u3001<code>-webkit-<\/code>\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306e\u6709\u7121\u3092\u9806\u756a\u306b\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3068\u539f\u56e0\u3092\u7279\u5b9a\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">iPhone\u3067\u5168\u753b\u9762\u8868\u793a\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u5c11\u3057\u306f\u307f\u51fa\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/h3>\n<p class=\"wp-block-paragraph\"><code>height: 100vh<\/code>\u304c\u539f\u56e0\u3067\u3059\u3002iOS\u306eSafari\u3067\u306f\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u5206\u304c100vh\u306b\u542b\u307e\u308c\u306a\u3044\u305f\u3081\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u304c\u306f\u307f\u51fa\u3057\u307e\u3059\u3002<code>height: 100svh<\/code>\uff08Safari 16\u4ee5\u964d\uff09\u306b\u5909\u66f4\u3059\u308b\u304b\u3001JavaScript\u3067<code>window.innerHeight<\/code>\u3092\u53d6\u5f97\u3057\u3066CSS\u5909\u6570\u306b\u30bb\u30c3\u30c8\u3059\u308b\u65b9\u6cd5\u3067\u89e3\u6c7a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">\u30ea\u30bb\u30c3\u30c8CSS\u306f\u3059\u3079\u3066\u306e\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u5fc5\u8981\u3067\u3059\u304b\uff1f<\/h3>\n<p class=\"wp-block-paragraph\">\u5b9f\u8cea\u7684\u306b\u306f\u5fc5\u8981\u3067\u3059\u3002\u305f\u3060\u3057\u3001WordPress\u30c6\u30fc\u30de\u3084Bootstrap\u30fbTailwind CSS\u306a\u3069\u306e\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u4f7f\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u72ec\u81ea\u306e\u30ea\u30bb\u30c3\u30c8\u304c\u5185\u5305\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u91cd\u8907\u3057\u3066\u30ea\u30bb\u30c3\u30c8\u3092\u304b\u3051\u308b\u3068\u610f\u56f3\u305b\u305a\u4e0a\u66f8\u304d\u304c\u8d77\u304d\u308b\u3053\u3068\u304c\u3042\u308b\u305f\u3081\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u306e\u30ea\u30bb\u30c3\u30c8\u5185\u5bb9\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u8ffd\u52a0\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"wp-block-heading\">Autoprefixer\u306f\u3069\u306e\u74b0\u5883\u3067\u4f7f\u3048\u307e\u3059\u304b\uff1f\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u304c\u306a\u3044\u5834\u5408\u306f\uff1f<\/h3>\n<p class=\"wp-block-paragraph\">Autoprefixer\u306fnpm\uff08Node.js\uff09\u74b0\u5883\u304c\u5fc5\u8981\u3067\u3059\u3002Vite\u3084Webpack\u306b\u7d44\u307f\u8fbc\u3093\u3067\u4f7f\u3046\u306e\u304c\u4e00\u822c\u7684\u3067\u3059\u3002\u30d3\u30eb\u30c9\u30c4\u30fc\u30eb\u3092\u4f7f\u3063\u3066\u3044\u306a\u3044\u5c0f\u898f\u6a21\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001<a href=\"https:\/\/autoprefixer.github.io\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u30aa\u30f3\u30e9\u30a4\u30f3\u306eAutoprefixer CSS Online<\/a>\u306bCSS\u3092\u8cbc\u308a\u4ed8\u3051\u308c\u3070\u5909\u63db\u5f8c\u306e\u30b3\u30fc\u30c9\u3092\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\">Windows\u306b\u306f\u306a\u3044\u3068\u8a00\u308f\u308c\u307e\u3059\u304c\u3001Safari\u306e\u30c6\u30b9\u30c8\u306fMac\u304c\u306a\u3044\u3068\u3067\u304d\u307e\u305b\u3093\u304b\uff1f<\/h3>\n<p class=\"wp-block-paragraph\">Mac\u306a\u3057\u3067Safari\u3092\u30c6\u30b9\u30c8\u3059\u308b\u306b\u306f<strong>BrowserStack<\/strong>\u3084<strong>LambdaTest<\/strong>\u306a\u3069\u306e\u30af\u30e9\u30a6\u30c9\u30c6\u30b9\u30c8\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u306e\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002\u6708\u984d\u6709\u6599\u3067\u3059\u304c\u3001\u5b9f\u6a5f\u3068\u540c\u7b49\u306e\u74b0\u5883\u3067Safari\u3092\u64cd\u4f5c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001SauceLabs\uff08\u4e00\u90e8\u7121\u6599\u67a0\u3042\u308a\uff09\u3082\u9078\u629e\u80a2\u306b\u306a\u308a\u307e\u3059\u3002Apple\u516c\u5f0f\u306e\u624b\u6bb5\u3068\u3057\u3066macOS\u306e\u4eee\u60f3\u30de\u30b7\u30f3\u3092\u30ea\u30fc\u30ac\u30eb\u306b\u4f7f\u3046\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u30b3\u30b9\u30c8\u304c\u9ad8\u3044\u305f\u3081\u696d\u52d9\u3067Safari\u78ba\u8a8d\u304c\u5fc5\u8981\u306a\u3089BrowserStack\u306e\u5c0e\u5165\u3092\u304a\u3059\u3059\u3081\u3057\u307e\u3059\u3002<\/p>\n<p><!-- 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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<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<h2 class=\"wp-block-heading\">AI\u30b9\u30ad\u30eb\u3067\u3001\u672a\u6765\u306e\u81ea\u5206\u3092\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\uff01<\/h2>\n<figure class=\"wp-block-image aligncenter size-large\"><a href=\"https:\/\/s.lmes.jp\/landing-qr\/2010578884-C5To3Fmv?uLand=phzKXf\" target=\"_blank\" rel=\"noopener noreferrer\"><img decoding=\"async\" width=\"1254\" height=\"1254\" src=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/withai-cta-banner.jpg\" alt=\"\u4eca\u306a\u3089\u5b8c\u5168\u7121\u6599\u3067AI\u3092\u5b66\u3079\u308b\uff01WithAI\" class=\"wp-image-18841\" style=\"max-width:600px;width:100%;height:auto\" srcset=\"https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/withai-cta-banner.jpg 1254w, https:\/\/withcode.tech\/media\/wp-content\/uploads\/2026\/07\/withai-cta-banner-768x768.jpg 768w\" sizes=\"(max-width: 1254px) 100vw, 1254px\" \/><\/a><\/figure>\n<h3 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mark_yellow\">0\u5186\u3067AI\u30b9\u30ad\u30eb\u304c\u8eab\u306b\u3064\u304f<\/span><\/li>\n<\/ul>\n<p>\u76ee\u7684\u306b\u5408\u308f\u305b\u3066\u9078\u3079\u308b\u300cAI\u526f\u696d\u300d\u300cAI\u8ee2\u8077\u300d\u300cAI\u6d3b\u7528\u300d\u306e3\u30b3\u30fc\u30b9\u3092\u7528\u610f\u3002\u526f\u53ce\u5165\u30fb\u30ad\u30e3\u30ea\u30a2\u30c1\u30a7\u30f3\u30b8\u30fb\u65e5\u5e38\u306e\u751f\u7523\u6027\u30a2\u30c3\u30d7\u307e\u3067\u3001\u3042\u306a\u305f\u306e\u30b4\u30fc\u30eb\u306b\u5408\u308f\u305b\u3066AI\u3092\u5b66\u3079\u307e\u3059\u3002<\/p>\n<p>\u4f1a\u54e1\u767b\u9332\u306f\u30ab\u30f3\u30bf\u30f330\u79d2\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002\u307e\u305a\u306f\u516c\u5f0fLINE\u304b\u3089\u3001\u7121\u6599\u3067AI\u5b66\u7fd2\u3092\u30b9\u30bf\u30fc\u30c8\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n<div class=\"wp-block-buttons\">\n<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\" 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