{"id":18164,"date":"2026-07-15T06:20:08","date_gmt":"2026-07-15T06:20:08","guid":{"rendered":"https:\/\/withcode.tech\/media\/?p=18164"},"modified":"2026-07-19T15:13:09","modified_gmt":"2026-07-19T15:13:09","slug":"css-calc","status":"publish","type":"post","link":"https:\/\/withcode.tech\/media\/css-calc\/","title":{"rendered":"\u30102026\u5e74\u7248\u3011CSS calc()\u306e\u4f7f\u3044\u65b9\u5b8c\u5168\u30ac\u30a4\u30c9\uff5c\u5358\u4f4d\u6df7\u5728\u30fb\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u8a08\u7b97\u3092\u30b3\u30d4\u30da\u3067"},"content":{"rendered":"<p class=\"wp-block-paragraph\">CSS\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u7d44\u3093\u3067\u3044\u308b\u3068\u3001\u300c\u30b5\u30a4\u30c9\u30d0\u30fc\u304c240px\u3042\u308b\u304b\u3089\u3001\u30e1\u30a4\u30f3\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u6b8b\u308a\u306e\u5e45\u306b\u3057\u305f\u3044\u300d\u300c\u30d8\u30c3\u30c0\u30fc\u304c60px\u3042\u308b\u304b\u3089\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u30a8\u30ea\u30a2\u306f100vh\u304b\u308960px\u5f15\u3044\u305f\u9ad8\u3055\u306b\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u5834\u9762\u304c\u5fc5\u305a\u6765\u307e\u3059\u3002\u3053\u308c\u3092\u624b\u8a08\u7b97\u3067px\u306b\u843d\u3068\u3057\u8fbc\u3082\u3046\u3068\u3059\u308b\u3068\u3001\u753b\u9762\u5e45\u304c\u5909\u308f\u308b\u305f\u3073\u306b\u5024\u304c\u5d29\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u305d\u3053\u3067\u6d3b\u8e8d\u3059\u308b\u306e\u304c<strong>CSS calc()<\/strong>\u3067\u3059\u3002calc()\u3092\u4f7f\u3048\u3070\u3001\u7570\u306a\u308b\u5358\u4f4d\uff08%\u3068px\u3001vw\u3068rem\u306a\u3069\uff09\u3092\u6df7\u5728\u3055\u305b\u305f\u8a08\u7b97\u5f0f\u3092CSS\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u3068\u3057\u3066\u76f4\u63a5\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u30d6\u30e9\u30a6\u30b6\u304c\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u6642\u306b\u8a08\u7b97\u3057\u3066\u304f\u308c\u308b\u305f\u3081\u3001JavaScript\u306b\u983c\u3089\u305a\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u306a\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001calc()\u306e\u57fa\u672c\u69cb\u6587\u304b\u3089\u56db\u5247\u6f14\u7b97\u306e\u30eb\u30fc\u30eb\u3001\u5b9f\u8df5\u7684\u306a\u30ec\u30a4\u30a2\u30a6\u30c8\u30c6\u30af\u30cb\u30c3\u30af\u3001CSS\u5909\u6570\uff08var\uff09\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3001\u3055\u3089\u306bclamp()\u30fbmin()\u30fbmax()\u3068\u306e\u4f7f\u3044\u5206\u3051\u307e\u3067\u3092\u7db2\u7f85\u3057\u307e\u3059\u3002\u30b3\u30d4\u30da\u3067\u52d5\u304f\u30b3\u30fc\u30c9\u4f8b\u3092\u4e2d\u5fc3\u306b\u3001\u521d\u5fc3\u8005\u304b\u3089\u4e2d\u7d1a\u8005\u307e\u3067\u5b9f\u52d9\u3067\u4f7f\u3048\u308b\u77e5\u8b58\u3092\u8eab\u306b\u3064\u3051\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\">calc()\u3068\u306f\u4f55\u304b\u30fb\u306a\u305c\u5fc5\u8981\u304b<\/h2>\n\n\n<h3 class=\"wp-block-heading\">calc()\u306e\u5f79\u5272<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u306fCSS Values and Units Module Level 4\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b<strong>CSS\u8a08\u7b97\u95a2\u6570<\/strong>\u3067\u3059\u3002\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u3068\u3057\u3066\u6570\u5f0f\u3092\u8a18\u8ff0\u3067\u304d\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u5b9f\u969b\u306e\u63cf\u753b\u6642\u306b\u8a08\u7b97\u7d50\u679c\u3092\u9069\u7528\u3057\u307e\u3059\u3002\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u306fwidth\u30fbheight\u30fbmargin\u30fbpadding\u30fbtop\u30fbleft\u30fbfont-size\u30fbline-height\u30fbgrid-template-columns\u306a\u3069\u3001\u9577\u3055\u3084\u6570\u5024\u3092\u53d7\u3051\u53d6\u308b\u307b\u307c\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3059\u3002<\/p>\n\n\n<p class=\"wp-block-paragraph\">2026\u5e74\u73fe\u5728\u3001\u3059\u3079\u3066\u306e\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\uff08Chrome\u30fbFirefox\u30fbSafari\u30fbEdge\uff09\u3067\u5b8c\u5168\u30b5\u30dd\u30fc\u30c8\u3055\u308c\u3066\u304a\u308a\u3001\u30d9\u30f3\u30c0\u30fc\u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\u306f\u4e0d\u8981\u3067\u3059\u3002IE11\u306e\u30b5\u30dd\u30fc\u30c8\u3082\u7d42\u4e86\u3057\u3066\u3044\u308b\u305f\u3081\u3001\u5b9f\u52d9\u3067\u5b89\u5fc3\u3057\u3066\u4f7f\u3048\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">calc()\u304c\u306a\u3044\u6642\u4ee3\u306e\u82e6\u52b4<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u304c\u666e\u53ca\u3059\u308b\u524d\u306f\u3001\u7570\u306a\u308b\u5358\u4f4d\u3092\u6df7\u305c\u305f\u8a08\u7b97\u306fJavaScript\u3067\u884c\u3046\u304b\u3001\u89aa\u8981\u7d20\u3092\u5165\u308c\u5b50\u306b\u3057\u3066\u76f8\u5bfe\u5024\u3092\u91cd\u306d\u308b\u306a\u3069\u306e\u5de5\u592b\u304c\u5fc5\u8981\u3067\u3057\u305f\u3002\u305f\u3068\u3048\u3070\u300c100%\u306e\u5e45\u304b\u308932px\u3092\u5f15\u304f\u300d\u3068\u3044\u3046\u8868\u73fe\u306fCSS\u3060\u3051\u3067\u306f\u4e0d\u53ef\u80fd\u3067\u3001box-sizing\u3067\u89e3\u6c7a\u3067\u304d\u306a\u3044\u5834\u9762\u3067\u306f\u8907\u96d1\u306aDOM\u69cb\u9020\u3092\u5f37\u3044\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u3002calc()\u306f\u305d\u306e\u554f\u984c\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u89e3\u6c7a\u3057\u307e\u3059\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\">\u57fa\u672c\u69cb\u6587\u3068\u66f8\u304d\u65b9\u306e\u30eb\u30fc\u30eb<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u57fa\u672c\u69cb\u6587<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u306e\u69cb\u6587\u306f\u30b7\u30f3\u30d7\u30eb\u3067\u3059\u3002\u62ec\u5f27\u306e\u4e2d\u306b\u8a08\u7b97\u5f0f\u3092\u66f8\u304f\u3060\u3051\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u57fa\u672c\u69cb\u6587 *\/\nproperty: calc(\u5f0f);\n\n\/* \u4f8b *\/\nwidth: calc(100% - 240px);\nheight: calc(100vh - 60px);\nfont-size: calc(1rem + 0.5vw);\npadding: calc(8px * 2);\n<\/code><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">calc()\u306f\u56db\u5247\u6f14\u7b97\uff08\u52a0\u7b97\u30fb\u6e1b\u7b97\u30fb\u4e57\u7b97\u30fb\u9664\u7b97\uff09\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u304a\u308a\u3001CSS\u3067\u6709\u52b9\u306a\u6570\u5024\u30fb\u9577\u3055\u30fb\u89d2\u5ea6\u30fb\u6642\u9593\u30fb\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\u30fb\u89e3\u50cf\u5ea6\u306a\u3069\u306e\u5024\u3092\u7d44\u307f\u5408\u308f\u305b\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">\u6f14\u7b97\u5b50\u306e\u524d\u5f8c\u306b\u30b9\u30da\u30fc\u30b9\u304c\u5fc5\u9808\u2014\u2014\u6700\u3082\u591a\u3044\u30a8\u30e9\u30fc\u306e\u539f\u56e0<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u3067\u6700\u3082\u3088\u304f\u3042\u308b\u9593\u9055\u3044\u304c\u3001<strong>+\uff08\u52a0\u7b97\uff09\u3068-\uff08\u6e1b\u7b97\uff09\u306e\u524d\u5f8c\u306b\u30b9\u30da\u30fc\u30b9\u3092\u5165\u308c\u5fd8\u308c\u308b<\/strong>\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306fCSS\u306e\u4ed5\u69d8\u4e0a\u306e\u5fc5\u9808\u30eb\u30fc\u30eb\u3067\u3001\u30b9\u30da\u30fc\u30b9\u304c\u306a\u3044\u3068\u6b63\u3057\u304f\u89e3\u6790\u3055\u308c\u305a\u3001\u30d7\u30ed\u30d1\u30c6\u30a3\u5168\u4f53\u304c\u7121\u52b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG: + \u3068 - \u306e\u524d\u5f8c\u306b\u30b9\u30da\u30fc\u30b9\u304c\u306a\u3044 *\/\nwidth: calc(100%-240px);   \/* \u7121\u52b9 *\/\nwidth: calc(100% -240px);  \/* \u7121\u52b9\uff08\u53f3\u5074\u306e\u30b9\u30da\u30fc\u30b9\u3060\u3051\u3067\u3082\u4e0d\u53ef\uff09 *\/\nwidth: calc(100%- 240px);  \/* \u7121\u52b9\uff08\u5de6\u5074\u306e\u30b9\u30da\u30fc\u30b9\u3060\u3051\u3067\u3082\u4e0d\u53ef\uff09 *\/\n\n\/* OK: + \u3068 - \u306e\u524d\u5f8c\u306b\u5fc5\u305a\u30b9\u30da\u30fc\u30b9\u3092\u5165\u308c\u308b *\/\nwidth: calc(100% - 240px); \/* \u6709\u52b9 *\/\nheight: calc(100vh + 10px); \/* \u6709\u52b9 *\/\n<\/code><\/pre><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3067*\uff08\u4e57\u7b97\uff09\u3068\/\uff08\u9664\u7b97\uff09\u306f\u524d\u5f8c\u306e\u30b9\u30da\u30fc\u30b9\u304c\u4efb\u610f\u3067\u3059\u3002\u305f\u3060\u3057\u53ef\u8aad\u6027\u306e\u305f\u3081\u306b\u30b9\u30da\u30fc\u30b9\u3092\u5165\u308c\u308b\u7fd2\u6163\u3092\u3064\u3051\u308b\u3068\u3001+ \u3068 &#8211; \u3068\u66f8\u304d\u65b9\u304c\u7d71\u4e00\u3055\u308c\u3066\u30df\u30b9\u304c\u6e1b\u308a\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* * \u3068 \/ \u306f\u30b9\u30da\u30fc\u30b9\u306a\u3057\u3067\u3082\u52d5\u4f5c\u3059\u308b\u304c\u3001\u7d71\u4e00\u306e\u305f\u3081\u30b9\u30da\u30fc\u30b9\u63a8\u5968 *\/\nwidth: calc(100% \/ 3);\npadding: calc(8px * 2);\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u5358\u4f4d\u306e\u30eb\u30fc\u30eb<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u306e\u4e2d\u3067\u306f<strong>\u5358\u4f4d\u306e\u7a2e\u985e\u3054\u3068\u306b\u6f14\u7b97\u306e\u5236\u7d04<\/strong>\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n<ul class=\"wp-block-list\">\n<li>\u52a0\u7b97\u30fb\u6e1b\u7b97\uff1a\u4e21\u8fba\u304c\u540c\u3058\u5358\u4f4d\u306e\u578b\uff08\u9577\u3055\u540c\u58eb\u3001\u89d2\u5ea6\u540c\u58eb\u306a\u3069\uff09\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u305f\u3060\u3057\u7570\u306a\u308b\u9577\u3055\u5358\u4f4d\uff08px\u3068vw\u306a\u3069\uff09\u306f\u540c\u3058\u578b\u306a\u306e\u3067OK\u3002<\/li>\n<li>\u4e57\u7b97\uff1a\u3069\u3061\u3089\u304b\u4e00\u65b9\u304c\u6570\u5024\uff08\u5358\u4f4d\u306a\u3057\uff09\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<li>\u9664\u7b97\uff1a\u53f3\u8fba\u304c\u6570\u5024\uff08\u5358\u4f4d\u306a\u3057\uff09\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002<\/li>\n<\/ul>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* OK: \u7570\u306a\u308b\u9577\u3055\u5358\u4f4d\u306e\u52a0\u6e1b\u7b97 *\/\nwidth: calc(50% + 20px);\nfont-size: calc(1rem + 0.5vw);\n\n\/* OK: \u4e57\u7b97\u306f\u7247\u65b9\u304c\u6570\u5024 *\/\npadding: calc(1rem * 1.5);\n\n\/* OK: \u9664\u7b97\u306f\u53f3\u8fba\u304c\u6570\u5024 *\/\nwidth: calc(100% \/ 4);\n\n\/* NG: \u4e21\u65b9\u306b\u5358\u4f4d\u304c\u3042\u308b\u4e57\u7b97 *\/\nwidth: calc(10px * 10px); \/* \u7121\u52b9 *\/\n\n\/* NG: \u53f3\u8fba\u306b\u5358\u4f4d\u304c\u3042\u308b\u9664\u7b97 *\/\nwidth: calc(100% \/ 10px); \/* \u7121\u52b9 *\/\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u56db\u5247\u6f14\u7b97\u306e\u4f7f\u3044\u65b9<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u52a0\u7b97\uff08+\uff09\u3068\u6e1b\u7b97\uff08-\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u52a0\u7b97\u3068\u6e1b\u7b97\u306f\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u300c\u5f15\u304d\u7b97\u300d\u300c\u7a4d\u307f\u4e0a\u3052\u300d\u306b\u4f7f\u3044\u307e\u3059\u3002\u3082\u3063\u3068\u3082\u4f7f\u7528\u983b\u5ea6\u304c\u9ad8\u3044\u6f14\u7b97\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.main-content {\n  \/* \u30b5\u30a4\u30c9\u30d0\u30fc240px + \u30ac\u30bf\u30fc20px \u3092\u5dee\u3057\u5f15\u3044\u305f\u30e1\u30a4\u30f3\u5e45 *\/\n  width: calc(100% - 260px);\n}\n\n.hero {\n  \/* \u30d8\u30c3\u30c0\u30fc\u9ad860px\u3092\u5f15\u3044\u305f\u30d5\u30a1\u30fc\u30b9\u30c8\u30d3\u30e5\u30fc\u9ad8\u3055 *\/\n  min-height: calc(100vh - 60px);\n}\n\n.card {\n  \/* \u4e0a\u4e0b\u30d1\u30c7\u30a3\u30f3\u30b0\u5408\u8a0832px\u306b\u52a0\u3048\u3066\u30dc\u30fc\u30c0\u30fc2px\u00d72\u3092\u8db3\u3057\u305f\u9ad8\u3055 *\/\n  height: calc(200px + 32px + 4px);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u4e57\u7b97\uff08*\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u4e57\u7b97\u306f\u500d\u7387\u8a08\u7b97\u3084\u30d9\u30fc\u30b9\u30e6\u30cb\u30c3\u30c8\u304b\u3089\u306e\u6bd4\u7387\u8a08\u7b97\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.section {\n  \/* \u57fa\u6e96\u50248px\u306e3\u500d = 24px *\/\n  padding: calc(8px * 3);\n}\n\n.text-large {\n  \/* \u57fa\u672c\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u306e1.5\u500d *\/\n  font-size: calc(1rem * 1.5);\n}\n\n.overlay {\n  \/* \u753b\u9762\u5e45\u306e0.8\u500d\uff0880%\u3068\u540c\u3058\u52b9\u679c\u3060\u304c\u8a08\u7b97\u4e0a\u306e\u610f\u56f3\u3092\u660e\u793a\uff09 *\/\n  width: calc(100vw * 0.8);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u9664\u7b97\uff08\/\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u9664\u7b97\u306f\u5747\u7b49\u5206\u5272\u3084\u30ec\u30a4\u30a2\u30a6\u30c8\u30b0\u30ea\u30c3\u30c9\u306e\u8a08\u7b97\u3067\u3088\u304f\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.grid-item {\n  \/* 3\u7b49\u5206 *\/\n  width: calc(100% \/ 3);\n}\n\n.column {\n  \/* 4\u7b49\u5206\u304b\u3089\u5de6\u53f3\u30de\u30fc\u30b8\u30f3\u8a08\u7b97\u3092\u5f15\u304f *\/\n  width: calc(100% \/ 4 - 16px);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u6f14\u7b97\u306e\u512a\u5148\u9806\u4f4d<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u5185\u3067\u306e\u6f14\u7b97\u306e\u512a\u5148\u9806\u4f4d\u306f\u901a\u5e38\u306e\u7b97\u6570\u3068\u540c\u3058\u3067\u3059\u3002* \u3068 \/ \u306f + \u3068 &#8211; \u3088\u308a\u5148\u306b\u8a55\u4fa1\u3055\u308c\u307e\u3059\u3002\u512a\u5148\u9806\u4f4d\u3092\u660e\u793a\u3057\u305f\u3044\u5834\u5408\u306f\u62ec\u5f27\u3067\u30b0\u30eb\u30fc\u30d4\u30f3\u30b0\u3067\u304d\u307e\u3059\uff08\u305f\u3060\u3057\u30cd\u30b9\u30c8\u306ecalc()\u3068\u306f\u5225\u7269\uff09\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* * \u304c\u5148\u306b\u8a08\u7b97\u3055\u308c\u308b: (2 * 20px) = 40px \u3092 100% \u304b\u3089\u5f15\u304f *\/\nwidth: calc(100% - 2 * 20px);\n\n\/* \u62ec\u5f27\u3067\u660e\u793a\u7684\u306b\u30b0\u30eb\u30fc\u30d4\u30f3\u30b0 *\/\nwidth: calc((100% - 40px) \/ 3);\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u7570\u306a\u308b\u5358\u4f4d\u3092\u6df7\u5728\u3055\u305b\u308b\u2014\u2014calc()\u306e\u6700\u5927\u306e\u5f37\u307f<\/h2>\n\n\n<h3 class=\"wp-block-heading\">%\u3068px\u306e\u6df7\u5728<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u6700\u5927\u306e\u5229\u70b9\u306f<strong>\u7570\u306a\u308b\u5358\u4f4d\u306e\u6df7\u5728<\/strong>\u3067\u3059\u3002\u7d14\u7c8b\u306aCSS\u3067\u306f\u300c\u89aa\u8981\u7d20\u306e50%\u304b\u3089\u3055\u3089\u306b20px\u5f15\u3044\u305f\u5e45\u300d\u30921\u3064\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u5024\u3067\u8868\u73fe\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001calc()\u306a\u3089\u4e00\u884c\u3067\u66f8\u3051\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.sidebar-layout {\n  display: flex;\n}\n\n.sidebar {\n  width: 240px;\n  flex-shrink: 0;\n}\n\n.main {\n  \/* \u89aa\u5e45\u304b\u3089\u56fa\u5b9a\u30b5\u30a4\u30c9\u30d0\u30fc\u3068\u4f59\u767d\u3092\u5f15\u304f *\/\n  width: calc(100% - 240px - 32px);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">vw\u3068px\u306e\u6df7\u5728\uff08\u53ef\u5909\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">vw\uff08\u30d3\u30e5\u30fc\u30dd\u30fc\u30c8\u5e45\u306e1%\uff09\u3068rem\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u753b\u9762\u5e45\u306b\u9023\u52d5\u3057\u306a\u304c\u3089\u3082\u6700\u5c0f\u30b5\u30a4\u30ba\u3092\u78ba\u4fdd\u3057\u305f\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u3092\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30bf\u30a4\u30dd\u30b0\u30e9\u30d5\u30a3\u306e\u57fa\u672c\u30c6\u30af\u30cb\u30c3\u30af\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.responsive-heading {\n  \/* \u57fa\u672c1rem\u306b\u753b\u9762\u5e45\u306e1%\u3092\u52a0\u7b97\u3002\u753b\u9762\u304c\u5e83\u3044\u307b\u3069\u5927\u304d\u304f\u306a\u308b *\/\n  font-size: calc(1rem + 1vw);\n}\n\n.fluid-body {\n  \/* \u6700\u5c0f14px\u76f8\u5f53 + \u753b\u9762\u5e45\u4f9d\u5b58\u306e\u8ffd\u52a0\u91cf *\/\n  font-size: calc(0.875rem + 0.25vw);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">vh\u3068\u56fa\u5b9a\u5024\u306e\u6df7\u5728\uff08\u30d5\u30eb\u30b9\u30af\u30ea\u30fc\u30f3\u30ec\u30a4\u30a2\u30a6\u30c8\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u56fa\u5b9a\u30d8\u30c3\u30c0\u30fc\u306e\u4e0b\u306b\u30b3\u30f3\u30c6\u30f3\u30c4\u30a8\u30ea\u30a2\u3092\u3074\u3063\u305f\u308a\u30d5\u30a3\u30c3\u30c8\u3055\u305b\u308b\u30b1\u30fc\u30b9\u306f\u5b9f\u52d9\u3067\u983b\u51fa\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n  --header-height: 60px;\n}\n\nheader {\n  position: fixed;\n  top: 0;\n  left: 0;\n  width: 100%;\n  height: var(--header-height);\n  background: #fff;\n  z-index: 100;\n}\n\n.page-content {\n  \/* \u30d8\u30c3\u30c0\u30fc\u9ad8\u3092\u5f15\u3044\u3066\u30b9\u30af\u30ed\u30fc\u30eb\u306a\u3057\u3067\u753b\u9762\u5185\u306b\u53ce\u3081\u308b *\/\n  min-height: calc(100vh - var(--header-height));\n  margin-top: var(--header-height);\n  overflow-y: auto;\n}\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u8df5\uff1a\u3088\u304f\u4f7f\u308f\u308c\u308b\u30ec\u30a4\u30a2\u30a6\u30c8\u30d1\u30bf\u30fc\u30f3<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u30b5\u30a4\u30c9\u30d0\u30fc\u4ed8\u304d\u306e\u53ef\u5909\u30e1\u30a4\u30f3\u30b3\u30f3\u30c6\u30f3\u30c4\u5e45<\/h3>\n\n\n<p class=\"wp-block-paragraph\">2\u30ab\u30e9\u30e0\u30ec\u30a4\u30a2\u30a6\u30c8\u3067\u7247\u5074\u304c\u56fa\u5b9a\u5e45\u3001\u3082\u3046\u7247\u5074\u304c\u6b8b\u308a\u306e\u5e45\u3092\u53d6\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002Flexbox\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u5805\u7262\u306a\u30ec\u30a4\u30a2\u30a6\u30c8\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-markup\" data-lang=\"HTML\"><code>&lt;div class=\"layout\"&gt;\n  &lt;aside class=\"sidebar\"&gt;\u30b5\u30a4\u30c9\u30d0\u30fc&lt;\/aside&gt;\n  &lt;main class=\"main\"&gt;\u30e1\u30a4\u30f3\u30b3\u30f3\u30c6\u30f3\u30c4&lt;\/main&gt;\n&lt;\/div&gt;\n<\/code><\/pre><\/div>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.layout {\n  display: flex;\n  gap: 32px;\n  max-width: 1200px;\n  margin: 0 auto;\n  padding: 0 24px;\n}\n\n.sidebar {\n  width: 260px;\n  flex-shrink: 0;\n}\n\n.main {\n  \/* \u89aa\u5e45 - \u30b5\u30a4\u30c9\u30d0\u30fc\u5e45 - gap\u5206 - \u5de6\u53f3\u30d1\u30c7\u30a3\u30f3\u30b0\u5206 *\/\n  width: calc(100% - 260px - 32px);\n  min-width: 0; \/* Flexbox\u306e\u30aa\u30fc\u30d0\u30fc\u30d5\u30ed\u30fc\u5bfe\u7b56 *\/\n}\n\n@media (max-width: 768px) {\n  .layout {\n    flex-direction: column;\n  }\n  .sidebar,\n  .main {\n    width: 100%;\n  }\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30b0\u30ea\u30c3\u30c9\u306egap\u8a08\u7b97\uff08\u5747\u7b49\u5206\u5272\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">CSS Grid\u3092\u4f7f\u308f\u305a\u306bflex\u3067\u5747\u7b493\u30ab\u30e9\u30e0\u3092\u4f5c\u308b\u969b\u3001gap\u306e\u5206\u3060\u3051\u5e45\u3092\u5f15\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.card-grid {\n  display: flex;\n  flex-wrap: wrap;\n  gap: 24px;\n}\n\n.card {\n  \/*\n    3\u5217: 100% \/ 3 = 33.333...%\n    gap\u306f\u5217\u9593\u306b2\u3064\uff083\u5217\u306a\u30892gap\u5206\uff09 \u2192 2 * 24px \/ 3\u5217 = 16px\n  *\/\n  width: calc(100% \/ 3 - 24px * 2 \/ 3);\n  \/* \u307e\u305f\u306f\u7b49\u4fa1\u306a\u8a08\u7b97: calc((100% - 24px * 2) \/ 3) *\/\n}\n\n@media (max-width: 640px) {\n  .card {\n    width: 100%;\n  }\n}\n<\/code><\/pre><\/div>\n\n<p class=\"wp-block-paragraph\">CSS Grid\u306egap\u30d7\u30ed\u30d1\u30c6\u30a3\u3068grid-template-columns\u3092\u4f7f\u3046\u5834\u5408\u306f\u81ea\u52d5\u3067gap\u3092\u8003\u616e\u3057\u3066\u304f\u308c\u307e\u3059\u304c\u3001Flexbox\u3067\u306fcalc()\u306b\u3088\u308b\u624b\u52d5\u8a08\u7b97\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30af\u30ed\u30fc\u30eb\u5bfe\u8c61\u30b3\u30f3\u30c6\u30ca\u306e\u9ad8\u3055\u8a2d\u5b9a\uff08100vh &#8211; \u30d8\u30c3\u30c0\u30fc\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u30e2\u30fc\u30c0\u30eb\u3084\u30b5\u30a4\u30c9\u30d1\u30cd\u30eb\u3001\u30c1\u30e3\u30c3\u30c8UI\u7b49\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u53ef\u80fd\u306a\u30b3\u30f3\u30c6\u30ca\u306e\u9ad8\u3055\u3092\u8a2d\u5b9a\u3059\u308b\u5178\u578b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n  --header-h: 60px;\n  --footer-h: 80px;\n}\n\n.scrollable-area {\n  height: calc(100vh - var(--header-h) - var(--footer-h));\n  overflow-y: auto;\n  -webkit-overflow-scrolling: touch; \/* iOS\u5bfe\u5fdc *\/\n}\n\n\/* \u30c1\u30e3\u30c3\u30c8UI: \u5165\u529b\u6b04\u304c\u4e0b\u56fa\u5b9a\u306e\u5834\u5408 *\/\n.chat-container {\n  display: flex;\n  flex-direction: column;\n  height: calc(100vh - var(--header-h));\n}\n\n.chat-messages {\n  flex: 1;\n  overflow-y: auto;\n}\n\n.chat-input {\n  height: 64px;\n  flex-shrink: 0;\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u4f59\u767d\u306e\u5f15\u304d\u7b97\uff08\u30cd\u30ac\u30c6\u30a3\u30d6\u30b9\u30da\u30fc\u30b9\u7ba1\u7406\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u30b3\u30f3\u30c6\u30ca\u306b\u30d1\u30c7\u30a3\u30f3\u30b0\u304c\u3042\u308b\u4e2d\u3067\u3001\u5185\u5305\u8981\u7d20\u3092\u5de6\u53f3\u7aef\u307e\u3067\u4f38\u3070\u3057\u305f\u3044\uff08\u3044\u308f\u3086\u308b\u300c\u306f\u307f\u51fa\u3057\u300d\uff09\u30b1\u30fc\u30b9\u306b\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.container {\n  padding: 0 24px;\n  max-width: 960px;\n  margin: 0 auto;\n}\n\n\/* \u30b3\u30f3\u30c6\u30ca\u306e\u30d1\u30c7\u30a3\u30f3\u30b0\u3092\u6253\u3061\u6d88\u3057\u3066\u5168\u5e45\u306b\u4f38\u3070\u3059 *\/\n.full-bleed {\n  width: calc(100% + 48px); \/* \u5de6\u53f324px\u00d72 = 48px \u8ffd\u52a0 *\/\n  margin-left: -24px;\n  margin-right: -24px;\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u4f4d\u7f6e\u6307\u5b9a\u3067\u306e\u6d3b\u7528\uff08top\/left\/transform\u4ee3\u66ff\uff09<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u8981\u7d20\u3092\u4e2d\u592e\u914d\u7f6e\u3059\u308b\u969b\u306etransform\u3092\u4f7f\u308f\u306a\u3044\u30a2\u30d7\u30ed\u30fc\u30c1\u306b\u3082calc()\u304c\u4f7f\u3048\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.modal {\n  position: fixed;\n  width: 480px;\n\n  \/* \u753b\u9762\u4e2d\u592e\u306b\u914d\u7f6e: 50% - \u8981\u7d20\u5e45\u306e\u534a\u5206 *\/\n  left: calc(50% - 240px);\n  top: calc(50% - 200px);\n}\n\n\/* \u53f3\u7aef\u304b\u3089\u56fa\u5b9a\u30aa\u30d5\u30bb\u30c3\u30c8\u3067\u914d\u7f6e *\/\n.fab {\n  position: fixed;\n  bottom: calc(24px + env(safe-area-inset-bottom)); \/* iPhone\u5bfe\u5fdc *\/\n  right: 24px;\n}\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">CSS\u5909\u6570\uff08var\uff09\u3068\u306e\u7d44\u307f\u5408\u308f\u305b<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u4f55\u304c\u3088\u3044\u304b<\/h3>\n\n\n<p class=\"wp-block-paragraph\">CSS\u5909\u6570\uff08\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u3068calc()\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u3001<strong>\u30c7\u30b6\u30a4\u30f3\u30c8\u30fc\u30af\u30f3\u30d9\u30fc\u30b9\u306e\u8a08\u7b97<\/strong>\u304c\u5b9f\u73fe\u3067\u304d\u307e\u3059\u3002\u57fa\u6e96\u5024\u3092\u5909\u6570\u306b\u6301\u305f\u305b\u3066\u304a\u3051\u3070\u3001\u305d\u306e\u5909\u6570\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u95a2\u9023\u3059\u308b\u3059\u3079\u3066\u306e\u8a08\u7b97\u7d50\u679c\u304c\u9023\u52d5\u3057\u3066\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n  --base-space: 8px;    \/* \u30b9\u30da\u30fc\u30b7\u30f3\u30b0\u306e\u57fa\u6e96 *\/\n  --header-height: 60px;\n  --sidebar-width: 260px;\n  --content-padding: 24px;\n}\n\n\/* \u5909\u6570\u3092\u8a08\u7b97\u306b\u4f7f\u3046 *\/\n.section {\n  padding: calc(var(--base-space) * 4) calc(var(--base-space) * 3);\n  \/* = padding: 32px 24px; *\/\n}\n\n.page-body {\n  height: calc(100vh - var(--header-height));\n  padding: 0 var(--content-padding);\n}\n\n.main-area {\n  width: calc(100% - var(--sidebar-width) - var(--content-padding) * 2);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30d6\u30ec\u30fc\u30af\u30dd\u30a4\u30f3\u30c8\u3092\u5909\u6570\u3067\u5207\u308a\u66ff\u3048\u308b<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u5909\u6570\u306e\u5024\u3060\u3051\u3092\u5909\u3048\u308b\u3053\u3068\u3067\u3001calc()\u306e\u5f0f\u306f\u305d\u306e\u307e\u307e\u4f7f\u3044\u56de\u305b\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n  --header-height: 60px;\n  --sidebar-width: 260px;\n}\n\n@media (max-width: 768px) {\n  :root {\n    --header-height: 48px;\n    --sidebar-width: 0px; \/* \u30b9\u30de\u30db\u3067\u306f\u30b5\u30a4\u30c9\u30d0\u30fc\u975e\u8868\u793a *\/\n  }\n}\n\n.content {\n  \/* \u8a08\u7b97\u5f0f\u306f\u305d\u306e\u307e\u307e\u3067\u3001\u5909\u6570\u306e\u5024\u3060\u3051\u5207\u308a\u66ff\u308f\u308b *\/\n  height: calc(100vh - var(--header-height));\n  width: calc(100% - var(--sidebar-width));\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">JavaScript\u9023\u643a\u306b\u3088\u308b\u52d5\u7684\u306a\u5909\u6570\u66f4\u65b0<\/h3>\n\n\n<p class=\"wp-block-paragraph\">JavaScript\u304b\u3089CSS\u5909\u6570\u3092\u66f4\u65b0\u3059\u308b\u3053\u3068\u3067\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u3084\u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u306b\u5fdc\u3058\u3066calc()\u306e\u8a08\u7b97\u7d50\u679c\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u306b\u5909\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n  --scroll-y: 0;\n}\n\n.parallax-element {\n  transform: translateY(calc(var(--scroll-y) * 0.3px));\n}\n<\/code><\/pre><\/div>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-markup\" data-lang=\"HTML\"><code>&lt;script&gt;\nwindow.addEventListener('scroll', () =&gt; {\n  document.documentElement.style.setProperty('--scroll-y', window.scrollY);\n});\n&lt;\/script&gt;\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">clamp()\u30fbmin()\u30fbmax()\u3068\u306e\u4f7f\u3044\u5206\u3051<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u305d\u308c\u305e\u308c\u306e\u5f79\u5272<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u3068\u540c\u3058\u304fCSS\u8a08\u7b97\u95a2\u6570\u30d5\u30a1\u30df\u30ea\u30fc\u306b\u5c5e\u3059\u308bclamp()\u30fbmin()\u30fbmax()\u306f\u3001calc()\u3060\u3051\u3067\u306f\u8868\u73fe\u3057\u3065\u3089\u3044\u300c\u7bc4\u56f2\u5236\u9650\u300d\u3092\u5b9f\u73fe\u3057\u307e\u3059\u30022026\u5e74\u73fe\u5728\u3001\u3053\u308c\u30894\u3064\u306e\u95a2\u6570\u3092\u4f7f\u3044\u5206\u3051\u308b\u3053\u3068\u304c\u30e2\u30c0\u30f3CSS\u306e\u57fa\u672c\u30b9\u30ad\u30eb\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>calc()<\/strong>: \u5358\u4e00\u306e\u8a08\u7b97\u7d50\u679c\u3092\u5f97\u308b\u3002\u56db\u5247\u6f14\u7b97\u30671\u3064\u306e\u5024\u3092\u6c42\u3081\u308b\u3068\u304d\u3002<\/li>\n<li><strong>min()<\/strong>: \u8907\u6570\u306e\u5024\u306e\u3046\u3061\u6700\u5c0f\u5024\u3092\u9078\u3076\u3002\u300c\u6700\u5927\u3067\u3082\u3053\u306e\u5024\u3092\u8d85\u3048\u306a\u3044\u300d\u4e0a\u9650\u8a2d\u5b9a\u306b\u4f7f\u3046\u3002<\/li>\n<li><strong>max()<\/strong>: \u8907\u6570\u306e\u5024\u306e\u3046\u3061\u6700\u5927\u5024\u3092\u9078\u3076\u3002\u300c\u6700\u4f4e\u3067\u3082\u3053\u306e\u5024\u3092\u4e0b\u56de\u3089\u306a\u3044\u300d\u4e0b\u9650\u8a2d\u5b9a\u306b\u4f7f\u3046\u3002<\/li>\n<li><strong>clamp()<\/strong>: \u6700\u5c0f\u5024\u30fb\u63a8\u5968\u5024\u30fb\u6700\u5927\u5024\u306e3\u5f15\u6570\u3067\u7bc4\u56f2\u3092\u56fa\u5b9a\u3002\u6d41\u4f53\u30bf\u30a4\u30dd\u30b0\u30e9\u30d5\u30a3\u3084\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u30b5\u30a4\u30ba\u8a2d\u5b9a\u306b\u6700\u9069\u3002<\/li>\n<\/ul>\n\n\n<h3 class=\"wp-block-heading\">min()\u3068max()\u306e\u4f7f\u3044\u65b9<\/h3>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* min(): \u753b\u9762\u5e45\u3068px\u306e\u3046\u3061\u5c0f\u3055\u3044\u65b9\u3092\u63a1\u7528 \u2192 \u6700\u5927\u5e45\u306e\u5236\u9650 *\/\n.container {\n  width: min(100%, 1200px);\n  \/* width: 100%; max-width: 1200px; \u3068\u540c\u7b49 *\/\n}\n\n\/* max(): \u5024\u306e\u3046\u3061\u5927\u304d\u3044\u65b9\u3092\u63a1\u7528 \u2192 \u6700\u5c0f\u30b5\u30a4\u30ba\u306e\u4fdd\u8a3c *\/\n.touch-target {\n  \/* \u30bf\u30c3\u30c1\u30bf\u30fc\u30b2\u30c3\u30c8\u306f\u6700\u4f4e44px\u78ba\u4fdd *\/\n  height: max(44px, 2.75rem);\n}\n\n\/* calc()\u3092\u5185\u90e8\u3067\u4f7f\u3046\u7d44\u307f\u5408\u308f\u305b *\/\n.fluid-width {\n  width: min(calc(100% - 48px), 960px);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">clamp()\u3067\u6d41\u4f53\u30bf\u30a4\u30dd\u30b0\u30e9\u30d5\u30a3\u3092\u5b9f\u73fe<\/h3>\n\n\n<p class=\"wp-block-paragraph\">clamp()\u306f\u300c\u6700\u5c0f\u5024, \u63a8\u5968\u5024, \u6700\u5927\u5024\u300d\u306e\u5f62\u5f0f\u3067\u66f8\u304d\u307e\u3059\u3002\u63a8\u5968\u5024\u306b\u306f\u53ef\u5909\u5358\u4f4d\uff08vw\u306a\u3069\uff09\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u753b\u9762\u5e45\u306b\u9023\u52d5\u3057\u306a\u304c\u3089\u4e0a\u4e0b\u9650\u3092\u6301\u3064\u5024\u30921\u884c\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.fluid-heading {\n  \/*\n    \u6700\u5c0f: 1.5rem\uff0824px\uff09\n    \u63a8\u5968: 2vw + 1rem\uff08\u753b\u9762\u5e45\u306b\u9023\u52d5\uff09\n    \u6700\u5927: 3rem\uff0848px\uff09\n  *\/\n  font-size: clamp(1.5rem, 2vw + 1rem, 3rem);\n}\n\n.fluid-padding {\n  padding: clamp(16px, 4vw, 64px);\n}\n\n\/* calc() + clamp() \u306e\u7d44\u307f\u5408\u308f\u305b *\/\n.section {\n  \/* \u30b3\u30f3\u30c6\u30ca\u5e45\u304b\u3089\u5de6\u53f3\u30d1\u30c7\u30a3\u30f3\u30b0\u3092\u5f15\u3044\u305f\u5024\u3092\u3001clamp\u3067\u4e0a\u4e0b\u9650\u4ed8\u304d\u3067\u4f7f\u3046 *\/\n  width: clamp(320px, calc(100% - 48px), 960px);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">calc()\u3068clamp()\u306e\u9078\u3073\u65b9<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u5224\u65ad\u57fa\u6e96\u306f\u300c\u7bc4\u56f2\u5236\u9650\u304c\u5fc5\u8981\u304b\u3069\u3046\u304b\u300d\u3067\u3059\u3002\u5358\u306b\u8a08\u7b97\u7d50\u679c\u304c\u6b32\u3057\u3044\u3060\u3051\u306a\u3089calc()\u3001\u300c\u3053\u306e\u5024\u3088\u308a\u5c0f\u3055\u304f\u3082\u5927\u304d\u304f\u3082\u3057\u305f\u304f\u306a\u3044\u300d\u3068\u3044\u3046\u5236\u7d04\u304c\u3042\u308b\u306a\u3089clamp()\u30fbmin()\u30fbmax()\u3092\u9078\u3093\u3067\u304f\u3060\u3055\u3044\u3002clamp()\u306e\u63a8\u5968\u5024\u5f15\u6570\u306bcalc()\u306e\u5f0f\u3092\u66f8\u304f\u3053\u3068\u3082\u53ef\u80fd\u3067\u3001\u4e21\u8005\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u3068\u8868\u73fe\u529b\u304c\u683c\u6bb5\u306b\u4e0a\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n<h2 class=\"wp-block-heading\">calc()\u306e\u30cd\u30b9\u30c8\uff08\u5165\u308c\u5b50\uff09<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u30cd\u30b9\u30c8\u306e\u66f8\u304d\u65b9<\/h3>\n\n\n<p class=\"wp-block-paragraph\">CSS Values Level 4\u4ed5\u69d8\u3067calc()\u306e\u30cd\u30b9\u30c8\u304c\u6b63\u5f0f\u306b\u8a31\u53ef\u3055\u308c\u3066\u3044\u307e\u3059\u3002calc()\u306e\u4e2d\u306bcalc()\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001\u5185\u5074\u306ecalc()\u306f\u7701\u7565\u3057\u3066\u62ec\u5f27\u3060\u3051\u306b\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* \u5185\u5074\u306bcalc()\u3092\u66f8\u304f\u5f62 *\/\nwidth: calc(calc(100% - 240px) \/ 2);\n\n\/* \u5185\u5074\u306ecalc()\u306f\u7701\u7565\u3067\u304d\u308b\uff08\u62ec\u5f27\u3060\u3051\u3067OK\uff09 *\/\nwidth: calc((100% - 240px) \/ 2);\n\n\/* \u5909\u6570\u3068\u306e\u7d44\u307f\u5408\u308f\u305b\u3067\u30cd\u30b9\u30c8\u304c\u6df1\u304f\u306a\u308b\u5834\u5408 *\/\n.complex {\n  margin: calc(var(--base-space) * 2 + (100vw - 1200px) \/ 2);\n}\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">min()\u30fbmax()\u30fbclamp()\u306e\u5185\u5074\u3067calc()\u3092\u4f7f\u3046<\/h3>\n\n\n<p class=\"wp-block-paragraph\">min()\u30fbmax()\u30fbclamp()\u306e\u5f15\u6570\u306e\u4e2d\u3067calc()\u306e\u5f0f\u3092\u4f7f\u3046\u5834\u5408\u3001\u5185\u5074\u306ecalc()\u306f\u7701\u7565\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306fCSS\u4ed5\u69d8\u3067\u300c\u6570\u5b66\u95a2\u6570\u306e\u5f15\u6570\u5185\u3067\u306f\u8a08\u7b97\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u304c\u7d99\u7d9a\u3059\u308b\u300d\u305f\u3081\u3001\u62ec\u5f27\u3060\u3051\u3067\u8a08\u7b97\u5f0f\u3092\u5206\u96e2\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* clamp()\u5185\u306ecalc()\u306f\u7701\u7565\u53ef\u80fd *\/\nfont-size: clamp(1rem, 1rem + 2vw, 2rem);\n\/* \u3053\u308c\u306f\u4ee5\u4e0b\u3068\u540c\u7b49 *\/\nfont-size: clamp(1rem, calc(1rem + 2vw), 2rem);\n\n\/* min()\u5185\u3067calc()\u5f0f\u3092\u4f7f\u3046 *\/\nwidth: min(100% - 32px, 1200px);\n\/* \u3053\u308c\u306f\u4ee5\u4e0b\u3068\u540c\u7b49 *\/\nwidth: min(calc(100% - 32px), 1200px);\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u30a8\u30e9\u30fc\u3068\u5bfe\u51e6\u6cd5<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30e9\u30fc1: \u6f14\u7b97\u5b50\u524d\u5f8c\u306e\u30b9\u30da\u30fc\u30b9\u4e0d\u8db3<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u524d\u8ff0\u306e\u901a\u308a\u3001+\u3068-\u306e\u524d\u5f8c\u306b\u30b9\u30da\u30fc\u30b9\u304c\u5fc5\u8981\u3067\u3059\u3002\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u52b9\u3044\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u307e\u305a\u3053\u3053\u3092\u7591\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u30d6\u30e9\u30a6\u30b6\u306eDevTools\u3067CSS\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u53d6\u308a\u6d88\u3057\u7dda\u4ed8\u304d\u3067\u8868\u793a\u3055\u308c\u3066\u3044\u305f\u3089\u69cb\u6587\u30a8\u30e9\u30fc\u306e\u30b5\u30a4\u30f3\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG *\/\nwidth: calc(100%-240px);\n\n\/* OK *\/\nwidth: calc(100% - 240px);\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30e9\u30fc2: \u30bc\u30ed\u306b\u5358\u4f4d\u3092\u3064\u3051\u3066\u3057\u307e\u3046<\/h3>\n\n\n<p class=\"wp-block-paragraph\">calc()\u306e\u4e2d\u3067\u3082\u901a\u5e38\u306eCSS\u3068\u540c\u69d8\u30010\u306b\u306f\u5358\u4f4d\u3092\u3064\u3051\u306a\u304f\u3066\u3088\u3044\u3067\u3059\u304c\u30010px\u3068\u66f8\u3044\u3066\u3082\u52d5\u4f5c\u3057\u307e\u3059\u3002\u305f\u3060\u3057<strong>\u9664\u7b97\u306e\u53f3\u8fba\u306b\u30bc\u30ed\u3092\u7f6e\u304f\u3068\u30bc\u30ed\u9664\u7b97\u306b\u306a\u308a\u7121\u52b9<\/strong>\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* OK: 0\u306b\u5358\u4f4d\u306a\u3057 *\/\nmargin: calc(0 + 16px);\n\n\/* NG: \u30bc\u30ed\u9664\u7b97 *\/\nwidth: calc(100% \/ 0); \/* \u7121\u52b9 *\/\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30e9\u30fc3: \u578b\u304c\u5408\u308f\u306a\u3044\u8a08\u7b97<\/h3>\n\n\n<p class=\"wp-block-paragraph\">\u9577\u3055\uff08px\u30fb%\u30fbvh\u7b49\uff09\u3068\u6570\u5024\uff08\u5358\u4f4d\u306a\u3057\uff09\u3092\u52a0\u6e1b\u7b97\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* NG: \u9577\u3055\u3068\u6570\u5024\u306e\u52a0\u7b97 *\/\nwidth: calc(100% + 2);   \/* \u7121\u52b9: 2\u306f\u6570\u5024\u3067\u9577\u3055\u3067\u306f\u306a\u3044 *\/\nopacity: calc(0.5 + 10%); \/* \u7121\u52b9: opacity\u306f\u6570\u5024\u3060\u304c10%\u306f\u9577\u3055\u578b *\/\n\n\/* OK: \u540c\u3058\u578b\u540c\u58eb *\/\nwidth: calc(100% + 2px);\nopacity: calc(0.5 + 0.1);\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30e9\u30fc4: \u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u5024\u306b\u5358\u4f4d\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044<\/h3>\n\n\n<p class=\"wp-block-paragraph\">CSS\u5909\u6570\u306b\u6570\u5024\u3060\u3051\u3092\u5165\u308c\u3066calc()\u5185\u3067\u5358\u4f4d\u3092\u5f8c\u4ed8\u3051\u3059\u308b\u30c6\u30af\u30cb\u30c3\u30af\u306f\u4ed5\u69d8\u4e0a\u30b0\u30ec\u30fc\u30be\u30fc\u30f3\u3067\u3057\u305f\u304c\u3001\u73fe\u5728\u306f\u300c\u6570\u5024\u3092\u5909\u6570\u306b\u5165\u308c\u3066calc()\u3067\u5358\u4f4d\u3092\u3064\u3051\u308b\u300d\u66f8\u304d\u65b9\u304c\u591a\u304f\u306e\u30d6\u30e9\u30a6\u30b6\u3067\u52d5\u4f5c\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u78ba\u5b9f\u6027\u3092\u6c42\u3081\u308b\u306a\u3089\u5358\u4f4d\u3054\u3068\u5909\u6570\u306b\u5165\u308c\u308b\u65b9\u304c\u5b89\u5168\u3067\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>:root {\n  --size: 240;      \/* \u5358\u4f4d\u306a\u3057\u6570\u5024 *\/\n  --size-px: 240px; \/* \u5358\u4f4d\u4ed8\u304d\uff08\u63a8\u5968\uff09 *\/\n}\n\n\/* \u5358\u4f4d\u306a\u3057\u5909\u6570 + calc()\u3067\u5358\u4f4d\u4ed8\u52a0\uff08\u52d5\u4f5c\u3059\u308b\u304c\u975e\u63a8\u5968\uff09 *\/\nwidth: calc(var(--size) * 1px); \/* \u52d5\u304f\u5834\u5408\u3082\u3042\u308b\u304c\u907f\u3051\u305f\u307b\u3046\u304c\u5b89\u5168 *\/\n\n\/* \u5358\u4f4d\u4ed8\u304d\u5909\u6570\u3092\u76f4\u63a5\u4f7f\u3046\uff08\u63a8\u5968\uff09 *\/\nwidth: var(--size-px);\n<\/code><\/pre><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u30a8\u30e9\u30fc5: Sass\/SCSS\u306e\u4e2d\u3067calc()\u3092\u4f7f\u3046\u3068\u304d\u306e#{}\u306e\u554f\u984c<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Sass\u3067CSS\u5909\u6570\u3068calc()\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u5834\u5408\u3001Sass\u304c\u8a08\u7b97\u3092\u5148\u306b\u8a55\u4fa1\u3057\u3088\u3046\u3068\u3057\u3066\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002Sass\u5909\u6570\u3092calc()\u5185\u3067\u4f7f\u3046\u5834\u5408\u306f#{$variable}\u3067\u88dc\u9593\u3059\u308b\u304b\u3001Sass\u306e\u8a08\u7b97\u3068CSS calc()\u3092\u533a\u5225\u3057\u3066\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>\/* Sass\u5185\u306e\u4f8b *\/\n\/* NG: Sass\u304c\u8a08\u7b97\u3057\u3088\u3046\u3068\u3057\u3066\u30a8\u30e9\u30fc *\/\n\/* width: calc($sidebar-width - 20px); *\/\n\n\/* OK: Sass\u88dc\u9593\u3092\u4f7f\u3046 *\/\n\/* width: calc(#{$sidebar-width} - 20px); *\/\n\n\/* \u7d14\u7c8b\u306aCSS\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\u306a\u3089\u554f\u984c\u306a\u3057 *\/\n\/* width: calc(var(--sidebar-width) - 20px); *\/\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">DevTools\u3067\u306e\u30c7\u30d0\u30c3\u30b0\u65b9\u6cd5<\/h2>\n\n\n<h3 class=\"wp-block-heading\">\u8a08\u7b97\u7d50\u679c\u306e\u78ba\u8a8d<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Chrome\u3084Edge\u306eDevTools\u3067\u306f\u3001calc()\u306e\u5f0f\u304c\u3069\u306e\u5024\u306b\u8a08\u7b97\u3055\u308c\u3066\u3044\u308b\u304b\u3092Computed\u30d1\u30cd\u30eb\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002Styles\u30d1\u30cd\u30eb\u3067\u306fcalc()\u306e\u5f0f\u305d\u306e\u307e\u307e\u304c\u8868\u793a\u3055\u308c\u3001Computed\u30d1\u30cd\u30eb\u3067\u306f\u8a08\u7b97\u5f8c\u306e\u5b9f\u969b\u306epx\u5024\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u30ec\u30a4\u30a2\u30a6\u30c8\u304c\u5d29\u308c\u305f\u5834\u5408\u306fComputed\u30d1\u30cd\u30eb\u3067\u671f\u5f85\u5024\u3068\u5b9f\u969b\u5024\u3092\u6bd4\u8f03\u3059\u308b\u306e\u304c\u6700\u77ed\u306e\u8a3a\u65ad\u65b9\u6cd5\u3067\u3059\u3002<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Styles\u30d1\u30cd\u30eb\u3067\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u78ba\u8a8d: calc()\u306e\u5f0f\u304c\u6b63\u3057\u304f\u69cb\u6587\u89e3\u6790\u3055\u308c\u3066\u3044\u308b\u304b\u30c1\u30a7\u30c3\u30af\uff08\u53d6\u308a\u6d88\u3057\u7dda\u306a\u3057\u304cOK\uff09<\/li>\n<li>Computed\u30d1\u30cd\u30eb\u3067\u8a08\u7b97\u7d50\u679c\u3092\u78ba\u8a8d: \u5b9f\u969b\u306b\u9069\u7528\u3055\u308c\u3066\u3044\u308bpx\u5024\u3092\u898b\u308b<\/li>\n<li>Layout\u30d1\u30cd\u30eb\u3067\u30dc\u30c3\u30af\u30b9\u30e2\u30c7\u30eb\u3092\u78ba\u8a8d: width\u3084padding\u304c\u671f\u5f85\u901a\u308a\u306e\u30b5\u30a4\u30ba\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u8996\u899a\u7684\u306b\u78ba\u8a8d<\/li>\n<\/ul>\n\n\n<h2 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8cea\u554f\uff08FAQ\uff09<\/h2>\n\n\n<h3 class=\"wp-block-heading\">Q. calc()\u306f\u3069\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3082\u4f7f\u3048\u307e\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">\u6570\u5024\u30fb\u9577\u3055\u30fb\u30d1\u30fc\u30bb\u30f3\u30c6\u30fc\u30b8\u30fb\u89d2\u5ea6\u30fb\u6642\u9593\u306a\u3069\u3092\u5024\u3068\u3057\u3066\u53d7\u3051\u53d6\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u3042\u308c\u3070calc()\u3092\u4f7f\u3048\u307e\u3059\u3002width\u30fbheight\u30fbmargin\u30fbpadding\u30fbtop\u30fbleft\u30fbbottom\u30fbright\u30fbfont-size\u30fbline-height\u30fbtransform\uff08\u306e\u5f15\u6570\uff09\u30fbgrid-template-columns\u30fbanimation-duration\u306a\u3069\u5e83\u7bc4\u56f2\u3067\u5229\u7528\u53ef\u80fd\u3067\u3059\u3002\u4e00\u65b9\u3067display\u3084position\u306a\u3069\u30ad\u30fc\u30ef\u30fc\u30c9\u5024\u306e\u307f\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u306f\u4f7f\u3048\u307e\u305b\u3093\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">Q. calc()\u306f\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u60aa\u5f71\u97ff\u304c\u3042\u308a\u307e\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">\u901a\u5e38\u306e\u4f7f\u3044\u65b9\u3067\u306f\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002\u30d6\u30e9\u30a6\u30b6\u306fcalc()\u3092\u30b9\u30bf\u30a4\u30eb\u306e\u89e3\u6c7a\u30d5\u30a7\u30fc\u30ba\u3067\u8a55\u4fa1\u3057\u3001\u305d\u306e\u5f8c\u306f\u30ad\u30e3\u30c3\u30b7\u30e5\u3055\u308c\u305f\u8a08\u7b97\u5024\u3092\u4f7f\u3044\u307e\u3059\u3002\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306etransform\u30d7\u30ed\u30d1\u30c6\u30a3\u5185\u3067calc()\u3092\u4f7f\u3046\u5834\u5408\u3082\u3001GPU\u5408\u6210\u30ec\u30a4\u30e4\u30fc\u3067\u51e6\u7406\u3055\u308c\u308b\u305f\u3081\u5b9f\u8cea\u7684\u306a\u30aa\u30fc\u30d0\u30fc\u30d8\u30c3\u30c9\u306f\u307b\u307c\u30bc\u30ed\u3067\u3059\u3002\u305f\u3060\u3057\u3001JavaScript\u304b\u3089CSS\u5909\u6570\u3092\u983b\u7e41\u306b\u66f4\u65b0\u3059\u308b\u30d1\u30bf\u30fc\u30f3\uff08\u30b9\u30af\u30ed\u30fc\u30eb\u3054\u3068\u306a\u3069\uff09\u3067\u306f\u518d\u8a08\u7b97\u30b3\u30b9\u30c8\u304c\u751f\u3058\u308b\u305f\u3081\u3001will-change\u3084requestAnimationFrame\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3057\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">Q. clamp()\u3068calc()\u306f\u3069\u3061\u3089\u3092\u512a\u5148\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">\u76ee\u7684\u306b\u3088\u3063\u3066\u4f7f\u3044\u5206\u3051\u307e\u3059\u3002\u300cA\u3068B\u3092\u8a08\u7b97\u3057\u30661\u3064\u306e\u5024\u3092\u51fa\u3059\u300d\u306a\u3089calc()\u3001\u300c\u8a08\u7b97\u7d50\u679c\u3092\u4e00\u5b9a\u7bc4\u56f2\u5185\u306b\u53ce\u3081\u305f\u3044\u300d\u306a\u3089clamp()\u30fbmin()\u30fbmax()\u3067\u3059\u3002\u30d5\u30a9\u30f3\u30c8\u30b5\u30a4\u30ba\u3084\u30b3\u30f3\u30c6\u30ca\u5e45\u306e\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc\u306b\u306fclamp()\u304c\u76f4\u611f\u7684\u3067\u4fbf\u5229\u3067\u3059\u3002\u305f\u3060\u3057clamp()\u306e\u63a8\u5968\u5024\u5f15\u6570\u306bcalc()\u306e\u5f0f\u3092\u66f8\u304f\u30b1\u30fc\u30b9\u306f\u591a\u304f\u3001\u300cclamp()\u306bcalc()\u3092\u5165\u308c\u308b\u300d\u7d44\u307f\u5408\u308f\u305b\u304c\u5b9f\u52d9\u3067\u306f\u6700\u3082\u3088\u304f\u767b\u5834\u3057\u307e\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">Q. CSS\u5909\u6570\uff08\u30ab\u30b9\u30bf\u30e0\u30d7\u30ed\u30d1\u30c6\u30a3\uff09\u306a\u3057\u3067calc()\u3092\u4f7f\u3046\u3079\u304d\u3067\u3057\u3087\u3046\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">\u5c0f\u898f\u6a21\u306a\u30b9\u30bf\u30a4\u30eb\u30b7\u30fc\u30c8\u30841\u7b87\u6240\u3060\u3051\u306e\u8a08\u7b97\u3067\u3042\u308c\u3070\u76f4\u66f8\u304d\u3067\u3082\u554f\u984c\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u8907\u6570\u7b87\u6240\u3067\u540c\u3058\u57fa\u6e96\u5024\uff08\u30d8\u30c3\u30c0\u30fc\u9ad8\u30fb\u30b5\u30a4\u30c9\u30d0\u30fc\u5e45\u30fb\u30b9\u30da\u30fc\u30b7\u30f3\u30b0\u57fa\u6e96\u306a\u3069\uff09\u3092\u4f7f\u3046\u306a\u3089\u3001CSS\u5909\u6570\u306b\u5207\u308a\u51fa\u3057\u3066calc()\u5185\u3067var()\u3092\u4f7f\u3046\u69cb\u6210\u3092\u5f37\u304f\u63a8\u5968\u3057\u307e\u3059\u3002\u5024\u304c\u5909\u308f\u3063\u305f\u3068\u304d\u306b1\u7b87\u6240\u306e\u5909\u66f4\u3060\u3051\u3067\u6e08\u307f\u3001\u4fdd\u5b88\u6027\u304c\u5927\u5e45\u306b\u4e0a\u304c\u308a\u307e\u3059\u3002\u7279\u306b:root\u306b\u5909\u6570\u3092\u96c6\u7d04\u3057\u3001\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3067\u5909\u6570\u5024\u3060\u3051\u3092\u66f4\u65b0\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u306f\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u8a2d\u8a08\u306e\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9\u3067\u3059\u3002<\/p>\n\n\n<h3 class=\"wp-block-heading\">Q. \u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u3078\u306e\u5bfe\u5fdc\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b\uff1f<\/h3>\n\n<p class=\"wp-block-paragraph\">IE11\u306e\u30b5\u30dd\u30fc\u30c8\u306f2022\u5e746\u6708\u306b\u7d42\u4e86\u3057\u3066\u304a\u308a\u30012026\u5e74\u6642\u70b9\u3067\u306f\u5b9f\u8cea\u7684\u306b\u8003\u616e\u4e0d\u8981\u3067\u3059\u3002\u305f\u3060\u3057\u3042\u3048\u3066\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3092\u7528\u610f\u3059\u308b\u5834\u5408\u306f\u3001calc()\u306e\u524d\u306b\u56fa\u5b9a\u5024\u3092\u66f8\u304f\u30ab\u30b9\u30b1\u30fc\u30c9\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n<div class=\"hcb_wrap\"><pre class=\"prism line-numbers lang-css\" data-lang=\"CSS\"><code>.element {\n  \/* \u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af: \u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u306f\u3053\u3061\u3089\u3092\u4f7f\u3046 *\/\n  width: 75%;\n  \/* \u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306fcalc()\u3067\u4e0a\u66f8\u304d *\/\n  width: calc(100% - 260px);\n}\n<\/code><\/pre><\/div>\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081<\/h2>\n\n\n<p class=\"wp-block-paragraph\">CSS calc()\u306f\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6Web\u30c7\u30b6\u30a4\u30f3\u306e\u6839\u5e79\u3092\u652f\u3048\u308b\u8a08\u7b97\u95a2\u6570\u3067\u3059\u3002\u300c\u7570\u306a\u308b\u5358\u4f4d\u3092\u6df7\u5728\u3055\u305b\u305f\u8a08\u7b97\u300d\u300c\u30d6\u30e9\u30a6\u30b6\u306b\u8a08\u7b97\u3092\u4efb\u305b\u3066\u5e38\u306b\u6b63\u78ba\u306a\u30ec\u30a4\u30a2\u30a6\u30c8\u300d\u3068\u3044\u3046\u3053\u306e2\u70b9\u304c\u3001calc()\u3092\u4f7f\u3046\u6700\u5927\u306e\u7406\u7531\u3067\u3059\u3002\u57fa\u672c\u3092\u304a\u3055\u3048\u305f\u3046\u3048\u3067\u3001CSS\u5909\u6570\u3084clamp()\u30fbmin()\u30fbmax()\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u3067\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u6027\u306e\u9ad8\u3044\u30e2\u30c0\u30f3\u306aCSS\u304c\u66f8\u3051\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>+\u3068-\u306e\u524d\u5f8c\u306b\u30b9\u30da\u30fc\u30b9\u304c\u5fc5\u9808<\/strong>\u2014\u2014\u3053\u308c\u3092\u5fd8\u308c\u308b\u3068\u30d7\u30ed\u30d1\u30c6\u30a3\u5168\u4f53\u304c\u7121\u52b9\u306b\u306a\u308b<\/li>\n<li><strong>\u7570\u306a\u308b\u5358\u4f4d\uff08%+px\u3001vh+rem\u306a\u3069\uff09\u30921\u3064\u306e\u5f0f\u306b\u66f8\u3051\u308b<\/strong>\u2014\u2014calc()\u6700\u5927\u306e\u5f37\u307f<\/li>\n<li><strong>CSS\u5909\u6570\uff08var\uff09\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u30c7\u30b6\u30a4\u30f3\u30c8\u30fc\u30af\u30f3\u7ba1\u7406<\/strong>\u2014\u2014\u5909\u6570\u306e\u5024\u3092\u5909\u3048\u308b\u3060\u3051\u3067\u5168\u4f53\u304c\u9023\u52d5\u3059\u308b<\/li>\n<li><strong>clamp()\u306fcalc()\u3068\u5225\u7269<\/strong>\u2014\u2014\u7bc4\u56f2\u5236\u9650\u304c\u5fc5\u8981\u306a\u3068\u304d\u306fclamp()\/min()\/max()\u3092\u4f7f\u3046<\/li>\n<li><strong>100vh &#8211; \u30d8\u30c3\u30c0\u30fc\u9ad8\u30fb100% \/ 3 &#8211; gap\u30fbfull-bleed\u8a08\u7b97<\/strong>\u304c\u4ee3\u8868\u7684\u306a\u5b9f\u8df5\u30d1\u30bf\u30fc\u30f3<\/li>\n<li><strong>DevTools\u306eComputed\u30d1\u30cd\u30eb\u3067\u8a08\u7b97\u7d50\u679c\u3092\u78ba\u8a8d<\/strong>\u3067\u304d\u308b<\/li>\n<\/ul>\n\n\n\n\n<!-- withmedia-related -->\n<h2 class=\"wp-block-heading\">\u95a2\u9023\u8a18\u4e8b<\/h2>\n\n\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/withcode.tech\/media\/css-centering\/\">CSS\u4e2d\u592e\u5bc4\u305b\u306e\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/css-media-query\/\">CSS\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u5b8c\u5168\u30ac\u30a4\u30c9\uff5c\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u5bfe\u5fdc<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/flex-box-layout\/\">Flexbox\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/grid-layout-webdesign\/\">CSS\u30b0\u30ea\u30c3\u30c9\u30ec\u30a4\u30a2\u30a6\u30c8\u5b8c\u5168\u30ac\u30a4\u30c9<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/css-position-sticky\/\">position: sticky\u3067\u8ffd\u5f93\u3055\u305b\u308b\u65b9\u6cd5<\/a><\/li>\n<li><a href=\"https:\/\/withcode.tech\/media\/css-webdesign-technique-map\/\">CSS\u5b9f\u88c5\u30c6\u30af\u30cb\u30c3\u30af\u5b8c\u5168\u30de\u30c3\u30d7<\/a><\/li>\n<\/ul>\n\n\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\u3067\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u7d44\u3093\u3067\u3044\u308b\u3068\u3001\u300c\u30b5\u30a4\u30c9\u30d0\u30fc\u304c240px\u3042\u308b\u304b\u3089\u3001\u30e1\u30a4\u30f3\u30b3\u30f3\u30c6\u30f3\u30c4\u306f\u6b8b\u308a\u306e\u5e45\u306b\u3057\u305f\u3044\u300d\u300c\u30d8\u30c3\u30c0\u30fc\u304c60px\u3042\u308b\u304b\u3089\u3001\u30b3\u30f3\u30c6\u30f3\u30c4\u30a8\u30ea\u30a2\u306f100vh\u304b\u308960px\u5f15\u3044\u305f\u9ad8\u3055\u306b\u3057\u305f\u3044\u300d\u3068\u3044\u3046\u5834\u9762\u304c\u5fc5\u305a\u6765\u307e\u3059\u3002\u3053 [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":18293,"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-18164","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\/18164","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=18164"}],"version-history":[{"count":1,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/posts\/18164\/revisions"}],"predecessor-version":[{"id":18173,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/posts\/18164\/revisions\/18173"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/media\/18293"}],"wp:attachment":[{"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/media?parent=18164"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/categories?post=18164"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/withcode.tech\/media\/wp-json\/wp\/v2\/tags?post=18164"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}