{"id":1720,"date":"2025-10-13T14:00:41","date_gmt":"2025-10-13T05:00:41","guid":{"rendered":"https:\/\/route-zero.com\/recruit\/?post_type=route&#038;p=1720"},"modified":"2025-11-11T14:01:07","modified_gmt":"2025-11-11T05:01:07","slug":"css%e3%82%b9%e3%82%af%e3%83%ad%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%8b%e3%83%a1%e3%83%bc%e3%82%b7%e3%83%a7%e3%83%b3%e5%ae%8c%e5%85%a8%e8%a7%a3%e8%aa%ac%ef%bd%9cscroll-timeline%e3%81%a7js%e4%b8%8d%e8%a6%81","status":"publish","type":"route","link":"https:\/\/route-zero.com\/recruit\/route\/1720\/","title":{"rendered":"CSS\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u5b8c\u5168\u89e3\u8aac\uff5cscroll-timeline\u3067JS\u4e0d\u8981\u306e\u8efd\u91cf\u6f14\u51fa\u3092\u5b9f\u73fe"},"content":{"rendered":"<div>\n<h1>CSS\u3060\u3051\u3067\u5b9f\u73fe\u3059\u308b\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\uff1ascroll-timeline\uff0fview-timeline\u5fb9\u5e95\u30ac\u30a4\u30c9<\/h1>\n<h2>\u5c0e\u5165\uff5c\u306a\u305c\u300cCSS\u3060\u3051\u300d\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u6f14\u51fa\u3092\u4f5c\u308a\u305f\u3044\u306e\u304b\uff1f<\/h2>\n<p>\n    \u65b0\u3057\u3044LP\u3067\u300c\u30b9\u30af\u30ed\u30fc\u30eb\u306b\u5408\u308f\u305b\u3066\u52d5\u304f\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u300d\u3092\u4f5c\u3063\u305f\u3068\u304d\u3001<strong>\u30ab\u30af\u3064\u304d\u30fbCLS\u60aa\u5316\u30fbJS\u30e9\u30a4\u30d6\u30e9\u30ea\u4f9d\u5b58<\/strong>\u306b\u60a9\u3093\u3060\u7d4c\u9a13\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<br \/>\n    \u79c1\u305f\u3061\u3082\u300c\u52d5\u304b\u3059\u307b\u3069\u91cd\u304f\u306a\u308b\u300d\u3053\u306e\u30b8\u30ec\u30f3\u30de\u306b\u9577\u304f\u82e6\u3057\u307f\u307e\u3057\u305f\u3002<\/p>\n<p>    \u539f\u56e0\u306e\u591a\u304f\u306f\u3001<strong>JavaScript\u304c\u6bce\u30d5\u30ec\u30fc\u30e0DOM\u3092\u518d\u63cf\u753b\u3057\u3066\u3044\u308b<\/strong>\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002<br \/>\n    \u305d\u306e\u89e3\u6c7a\u7b56\u3068\u3057\u3066\u767b\u5834\u3057\u305f\u306e\u304c\u3001<strong>CSS\u6a19\u6e96\u4ed5\u69d8\u306e <code>scroll-timeline<\/code>\uff0f<code>view-timeline<\/code><\/strong\n    >\u3002<br \/>\n    \u3053\u308c\u3089\u3092\u4f7f\u3048\u3070\u3001JS\u3092\u4f7f\u308f\u305a\u306b\u300c\u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u306b\u9023\u52d5\u3057\u305f\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u300d\u3092\u8efd\u91cf\u306b\u5b9f\u88c5\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>    \u672c\u8a18\u4e8b\u3067\u306f\u3001\u4ee5\u4e0b\u3092\u73fe\u5834\u76ee\u7dda\u3067\u6574\u7406\u3057\u307e\u3059\u3002<br \/>\n    \u30fb\u306a\u305c\u91cd\u304f\u306a\u308b\u306e\u304b<br \/>\n    \u30fb<strong>scroll-timeline\uff0fview-timeline<\/strong> \u306e\u4f7f\u3044\u65b9<br \/>\n    \u30fb\u5b9f\u88c5\u30d1\u30bf\u30fc\u30f3\u3068\u30e9\u30a4\u30d6\u30e9\u30ea\u6bd4\u8f03<br \/>\n    \u30fb\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff0f\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5bfe\u7b56<\/p>\n<p>    \u4e00\u7dd2\u306b\u3001\u6ed1\u3089\u304b\u3067\u4fdd\u5b88\u3057\u3084\u3059\u3044\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u76ee\u6307\u3057\u307e\u3057\u3087\u3046\u3002\n  <\/p>\n<p>\uff08CSS\u8a2d\u8a08\u3084\u547d\u540d\u898f\u5247\u306e\u8003\u3048\u65b9\u306b\u3064\u3044\u3066\u306f\u300e<a href=\"https:\/\/route-zero.com\/recruit\/route\/1642\/\" target=\"_blank\" rel=\"noopener\">CSS\u8a2d\u8a08\u3067\u4fdd\u5b88\u6027\u3068\u62e1\u5f35\u6027\u3092\u9ad8\u3081\u308b\u65b9\u6cd5\uff5cBEM\u30fbOOCSS\u30fbSMACSS\u5fb9\u5e95\u6bd4\u8f03<\/a>\u300f\u3082\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\uff09<\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aLP\uff08\u30e9\u30f3\u30c7\u30a3\u30f3\u30b0\u30da\u30fc\u30b8\uff09<\/strong><br \/>\n      \u5e83\u544a\u3084\u691c\u7d22\u7d50\u679c\u306a\u3069\u304b\u3089\u8a2a\u554f\u8005\u304c\u6700\u521d\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u30da\u30fc\u30b8\u3002\u5546\u54c1\u3084\u30b5\u30fc\u30d3\u30b9\u306e\u8a34\u6c42\u30fb\u6210\u7d04\u3092\u76ee\u7684\u3068\u3059\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aCLS\uff08Cumulative Layout Shift\uff09<\/strong><br \/>\n      \u30da\u30fc\u30b8\u8868\u793a\u4e2d\u306e\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u30ba\u30ec\u91cf\u3092\u793a\u3059\u6307\u6a19\u3002\u6570\u5024\u304c\u5927\u304d\u3044\u3068\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u304c\u60aa\u5316\u3059\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aJS\u30e9\u30a4\u30d6\u30e9\u30ea<\/strong><br \/>\n      JavaScript\u3067\u66f8\u304b\u308c\u305f\u5916\u90e8\u30d7\u30ed\u30b0\u30e9\u30e0\u7fa4\u3002\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3084UI\u5236\u5fa1\u306a\u3069\u3092\u7c21\u5358\u306b\u5b9f\u88c5\u3067\u304d\u308b\u304c\u3001\u4f9d\u5b58\u3057\u3059\u304e\u308b\u3068\u4fdd\u5b88\u6027\u3084\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u5f71\u97ff\u3059\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aDOM\uff08Document Object Model\uff09<\/strong><br \/>\n      HTML\u6587\u66f8\u3092\u30d7\u30ed\u30b0\u30e9\u30e0\u304b\u3089\u64cd\u4f5c\u3059\u308b\u305f\u3081\u306e\u69cb\u9020\u3002JavaScript\u3067\u8981\u7d20\u306e\u8ffd\u52a0\u30fb\u524a\u9664\u30fb\u5909\u66f4\u304c\u3067\u304d\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1ascroll-timeline\uff0fview-timeline<\/strong><br \/>\n      CSS\u306e\u65b0\u3057\u3044\u6a19\u6e96\u4ed5\u69d8\u3002\u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u3084\u8981\u7d20\u306e\u8868\u793a\u7bc4\u56f2\u3092\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u9032\u884c\u5ea6\uff08\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3\uff09\u3068\u3057\u3066\u5229\u7528\u3067\u304d\u308b\u3002\n    <\/p>\n<\/blockquote>\n<hr \/>\n<h2>1. \u306a\u305c\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u306f\u91cd\u304f\uff0f\u4e0d\u5b89\u5b9a\u306b\u306a\u308b\u306e\u304b<\/h2>\n<p>\n    \u30d6\u30e9\u30a6\u30b6\u304c\u91cd\u304f\u306a\u308b\u4e3b\u56e0\u306f\u3001<strong>\u518d\u63cf\u753b\u3068\u30ec\u30a4\u30a2\u30a6\u30c8\u518d\u8a08\u7b97<\/strong>\u3067\u3059\u3002<br \/>\n    JavaScript\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u30a4\u30d9\u30f3\u30c8\u3092\u76e3\u8996\u3059\u308b\u3068\u3001\u30d6\u30e9\u30a6\u30b6\u306f\u6bce\u56deDOM\u3092\u518d\u8a55\u4fa1\u3057\u3001\u7d50\u679c\u7684\u306b<strong>\u30b8\u30e3\u30f3\u30af\uff08\u30d5\u30ec\u30fc\u30e0\u843d\u3061\uff09<\/strong>\u304c\u767a\u751f\u3057\u307e\u3059\u3002<br \/>\n    \u7279\u306b\u30e2\u30d0\u30a4\u30eb\u3067\u306fCPU\u30fbGPU\u30ea\u30bd\u30fc\u30b9\u304c\u9650\u3089\u308c\u308b\u305f\u3081\u3001<code>top<\/code> \u3084 <code>left<\/code> \u306e\u5909\u66f4\u306f\u7981\u7269\u3002<br \/>\n    \u4ee3\u308f\u308a\u306b\u3001<strong><code>transform<\/code> \u3068 <code>opacity<\/code> \u306e\u307f\u3067\u52d5\u304b\u3059<\/strong>\u306e\u304c\u9244\u5247\u3067\u3059\u3002\n  <\/p>\n<h3>\u25a0 Core Web Vitals\u3067\u898b\u308b\u5f71\u97ff\u70b9<\/h3>\n<table>\n<thead>\n<tr>\n<th>\u6307\u6a19<\/th>\n<th>\u5185\u5bb9<\/th>\n<th>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u5f71\u97ff<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>CLS<\/strong><\/td>\n<td>\u30ec\u30a4\u30a2\u30a6\u30c8\u79fb\u52d5\u91cf<\/td>\n<td>\u4f4d\u7f6e\u5909\u66f4\u7cfb\u30a2\u30cb\u30e1\u3067\u60aa\u5316\u3057\u3084\u3059\u3044<\/td>\n<\/tr>\n<tr>\n<td><strong>LCP<\/strong><\/td>\n<td>\u30e1\u30a4\u30f3\u8981\u7d20\u306e\u63cf\u753b\u901f\u5ea6<\/td>\n<td>\u80cc\u666f\u30a2\u30cb\u30e1\u304c\u91cd\u3044\u3068\u9045\u5ef6<\/td>\n<\/tr>\n<tr>\n<td><strong>INP<\/strong><\/td>\n<td>\u64cd\u4f5c\u5f8c\u306e\u53cd\u5fdc\u901f\u5ea6<\/td>\n<td>scroll\u30a4\u30d9\u30f3\u30c8\u51e6\u7406\u304c\u591a\u3044\u3068\u60aa\u5316<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\uff08Web Vitals\u3084CLS\u30fbLCP\u306e\u8a73\u7d30\u306a\u89e3\u8aac\u306f\u300e<a href=\"https:\/\/route-zero.com\/recruit\/route\/1707\/\" target=\"_blank\" rel=\"noopener\">CSS padding margin\u4f7f\u3044\u5206\u3051\u5b8c\u5168\u30ac\u30a4\u30c9\uff5c\u5931\u6557\u4f8b\u3068\u30d9\u30b9\u30c8\u30d7\u30e9\u30af\u30c6\u30a3\u30b9<\/a>\u300f\u3092\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\uff09<\/p>\n<p>\n    \u6539\u5584\u306e\u7b2c\u4e00\u6b69\u306f<strong>\u5408\u6210\u30ec\u30a4\u30e4\u30fc\u306e\u6d3b\u7528<\/strong>\u3002<br \/>\n    <code>will-change: transform;<\/code> \u3092\u9069\u5207\u306b\u6307\u5b9a\u3059\u308c\u3070\u3001GPU\u63cf\u753b\u306b\u79fb\u884c\u3067\u304d\u3001\u518d\u30ec\u30a4\u30a2\u30a6\u30c8\u3092\u6291\u5236\u3067\u304d\u307e\u3059\u3002\n  <\/p>\n<blockquote>\n<p>&#x2705; <strong>\u30dd\u30a4\u30f3\u30c8\uff1a<\/strong>CSS\u3060\u3051\u3067\u300c\u63cf\u753b\u8ca0\u8377\u3092\u5206\u96e2\u300d\u3059\u308b\u306e\u304c\u3001Web Vitals\u5bfe\u7b56\u306e\u57fa\u672c\u3067\u3059\u3002<\/p>\n<\/blockquote>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aCore Web Vitals<\/strong><br \/>\n      Google\u304c\u63d0\u5531\u3059\u308bWeb\u30da\u30fc\u30b8\u306e\u54c1\u8cea\u6307\u6a19\u3002CLS\uff08\u30ec\u30a4\u30a2\u30a6\u30c8\u306e\u5b89\u5b9a\u6027\uff09\u3001LCP\uff08\u8868\u793a\u901f\u5ea6\uff09\u3001INP\uff08\u64cd\u4f5c\u5fdc\u7b54\u6027\uff09\u306a\u3069\u304c\u3042\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aLCP\uff08Largest Contentful Paint\uff09<\/strong><br \/>\n      \u30da\u30fc\u30b8\u5185\u3067\u6700\u3082\u5927\u304d\u306a\u8981\u7d20\u304c\u8868\u793a\u3055\u308c\u308b\u307e\u3067\u306e\u6642\u9593\u3002\u77ed\u3044\u307b\u3069\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u304c\u826f\u3044\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aINP\uff08Interaction to Next Paint\uff09<\/strong><br \/>\n      \u30e6\u30fc\u30b6\u30fc\u64cd\u4f5c\u304b\u3089\u753b\u9762\u304c\u53cd\u5fdc\u3059\u308b\u307e\u3067\u306e\u901f\u5ea6\u3002\u65b0\u3057\u3044Web Vitals\u6307\u6a19\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u518d\u63cf\u753b\u30fb\u30ec\u30a4\u30a2\u30a6\u30c8\u518d\u8a08\u7b97<\/strong><br \/>\n      \u30da\u30fc\u30b8\u306e\u4e00\u90e8\u304c\u5909\u5316\u3057\u305f\u969b\u3001\u30d6\u30e9\u30a6\u30b6\u304c\u898b\u305f\u76ee\u3084\u914d\u7f6e\u3092\u518d\u8a08\u7b97\u30fb\u518d\u8868\u793a\u3059\u308b\u51e6\u7406\u3002\u983b\u767a\u3059\u308b\u3068\u52d5\u4f5c\u304c\u91cd\u304f\u306a\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u30b8\u30e3\u30f3\u30af\uff08\u30d5\u30ec\u30fc\u30e0\u843d\u3061\uff09<\/strong><br \/>\n      \u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3084\u30b9\u30af\u30ed\u30fc\u30eb\u304c\u30ab\u30af\u3064\u304f\u73fe\u8c61\u30021\u79d2\u9593\u306b\u8868\u793a\u3059\u3079\u304d\u30d5\u30ec\u30fc\u30e0\u6570\u304c\u843d\u3061\u308b\u3053\u3068\u3067\u767a\u751f\u3059\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1atransform\uff0fopacity<\/strong><br \/>\n      CSS\u3067\u8981\u7d20\u306e\u4f4d\u7f6e\u3084\u900f\u660e\u5ea6\u3092\u5909\u66f4\u3059\u308b\u30d7\u30ed\u30d1\u30c6\u30a3\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u306b\u512a\u308c\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3067\u63a8\u5968\u3055\u308c\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u5408\u6210\u30ec\u30a4\u30e4\u30fc<\/strong><br \/>\n      \u30d6\u30e9\u30a6\u30b6\u304c\u8981\u7d20\u3092\u500b\u5225\u306b\u63cf\u753b\u30fb\u5408\u6210\u3059\u308b\u4ed5\u7d44\u307f\u3002<code>will-change<\/code>\u6307\u5b9a\u3067GPU\u63cf\u753b\u306b\u5207\u308a\u66ff\u308f\u308a\u3001\u52d5\u4f5c\u304c\u6ed1\u3089\u304b\u306b\u306a\u308b\u3002\n    <\/p>\n<\/blockquote>\n<hr \/>\n<h2>2. \u6a19\u6e96API\u3067\u5b9f\u73fe\u3059\u308b\u30b9\u30af\u30ed\u30fc\u30eb\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u5165\u9580\uff08scroll-timeline\uff0fview-timeline\uff09<\/h2>\n<h3>\u25a0 \u57fa\u672c\u69cb\u6587\u3092\u62bc\u3055\u3048\u308b<\/h3>\n<p><code>scroll-timeline<\/code> \u306f\u30b9\u30af\u30ed\u30fc\u30eb\u91cf\u3092\u3001<code>view-timeline<\/code> \u306f\u8981\u7d20\u306e\u8868\u793a\u7bc4\u56f2\u3092\u3001<strong>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3<\/strong>\u3068\u3057\u3066\u6271\u3046\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u30bf\u30a4\u30e0\u30e9\u30a4\u30f3<\/strong><br \/>\n      \u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u9032\u884c\u5ea6\u3092\u5236\u5fa1\u3059\u308b\u57fa\u6e96\u3002scroll-timeline\u3084view-timeline\u3067\u306f\u3001\u30b9\u30af\u30ed\u30fc\u30eb\u91cf\u3084\u8981\u7d20\u306e\u8868\u793a\u7bc4\u56f2\u304c\u9032\u884c\u5ea6\u3068\u306a\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a@keyframes<\/strong><br \/>\n      CSS\u3067\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u52d5\u304d\u3092\u5b9a\u7fa9\u3059\u308b\u69cb\u6587\u3002from\/to\u3084%\u6307\u5b9a\u3067\u72b6\u614b\u3092\u5207\u308a\u66ff\u3048\u308b\u3002\n    <\/p>\n<\/blockquote>\n<pre><code>@keyframes fadeIn {\r\n  from { opacity: 0; }\r\n  to { opacity: 1; }\r\n}\r\n\r\n.scroll-anim {\r\n  animation: fadeIn 1s linear both;\r\n  animation-timeline: scroll(my-timeline);\r\n}\r\n\r\n@scroll-timeline my-timeline {\r\n  source: auto;\r\n  orientation: block;\r\n}<\/code><\/pre>\n<h3>\u25a0 \u3088\u304f\u4f7f\u3046\u30d1\u30bf\u30fc\u30f3<\/h3>\n<ul>\n<li><strong>\u30d5\u30a7\u30fc\u30c9\u30a4\u30f3\uff1a<\/strong> \u30bb\u30af\u30b7\u30e7\u30f3\u3054\u3068\u306e\u51fa\u73fe\u6f14\u51fa<\/li>\n<li><strong>\u30b9\u30c6\u30c3\u30d7\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\uff1a<\/strong> \u9032\u6357\u306b\u5408\u308f\u305b\u3066\u68d2\u30b0\u30e9\u30d5\u304c\u4f38\u3073\u308b<\/li>\n<li><strong>\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\uff1a<\/strong> \u80cc\u666f\u3068\u524d\u666f\u3092\u7570\u306a\u308b\u901f\u5ea6\u3067\u52d5\u304b\u3059<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306f\u3059\u3079\u3066CSS\u306e\u307f\u3067\u8a18\u8ff0\u3067\u304d\u3001<strong>JavaScript\u306e\u30a4\u30d9\u30f3\u30c8\u76e3\u8996\u304c\u4e0d\u8981<\/strong>\u3067\u3059\u3002<\/p>\n<p>\uff08\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u3084\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u306e\u5b9f\u88c5\u4f8b\u306b\u3064\u3044\u3066\u306f\u300e<a href=\"https:\/\/route-zero.com\/recruit\/route\/1091\/\" target=\"_blank\" rel=\"noopener\">Web\u5236\u4f5c\u3067\u4f7f\u3048\u308bCSS\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f310\u9078\uff5c\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff06\u4f7f\u3044\u65b9\u89e3\u8aac<\/a>\u300f\u3082\u3054\u53c2\u7167\u304f\u3060\u3055\u3044\uff09<\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u30d1\u30e9\u30e9\u30c3\u30af\u30b9<\/strong><br \/>\n      \u80cc\u666f\u3068\u524d\u666f\u3092\u7570\u306a\u308b\u901f\u5ea6\u3067\u52d5\u304b\u3057\u3001\u5965\u884c\u304d\u611f\u3092\u6f14\u51fa\u3059\u308bWeb\u30c7\u30b6\u30a4\u30f3\u624b\u6cd5\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aprogressive enhancement\uff08\u6bb5\u968e\u7684\u5f37\u5316\uff09<\/strong><br \/>\n      \u307e\u305a\u57fa\u672c\u6a5f\u80fd\u3092\u5b9f\u88c5\u3057\u3001\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u8ffd\u52a0\u6a5f\u80fd\u3092\u6709\u52b9\u5316\u3059\u308b\u8a2d\u8a08\u601d\u60f3\u3002\n    <\/p>\n<\/blockquote>\n<h3>\u25a0 \u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\uff082025\u5e7411\u6708\u6642\u70b9\uff09<\/h3>\n<ul>\n<li><strong>\u5bfe\u5fdc\u6e08\u307f\uff1a<\/strong> Chrome\uff0fEdge\uff0fOpera<\/li>\n<li><strong>\u90e8\u5206\u5bfe\u5fdc\uff1a<\/strong> Safari<\/li>\n<li><strong>\u8a66\u9a13\u4e2d\uff1a<\/strong> Firefox<\/li>\n<\/ul>\n<p>\n    \u307e\u3060Experimental\u6271\u3044\u3067\u3059\u304c\u3001\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u3067\u306f\u5341\u5206\u52d5\u4f5c\u3057\u307e\u3059\u3002<br \/>\n    \u672c\u756a\u5c0e\u5165\u3082\u300cprogressive enhancement\uff08\u6bb5\u968e\u7684\u5f37\u5316\uff09\u300d\u306e\u5f62\u3067\u9032\u3081\u3089\u308c\u307e\u3059\u3002\n  <\/p>\n<hr \/>\n<h2>3. LP\u3067\u4f7f\u3048\u308b3\u3064\u306e\u30e6\u30fc\u30b9\u30b1\u30fc\u30b9<\/h2>\n<h3>\u2460 \u30d2\u30fc\u30ed\u30fc\u30d3\u30b8\u30e5\u30a2\u30eb\u306e\u30d5\u30a7\u30fc\u30c9\u30a4\u30f3<\/h3>\n<p>\n    <code>view-timeline<\/code> \u3092\u4f7f\u3044\u3001\u753b\u9762\u306b\u5165\u308b\u77ac\u9593\u3060\u3051\u900f\u660e\u5ea6\u3092\u4e0a\u3052\u307e\u3059\u3002<br \/>\n    <code>transform<\/code> \u3092\u5229\u7528\u3059\u308c\u3070CLS\u3092\u907f\u3051\u3064\u3064\u3001\u81ea\u7136\u306a\u51fa\u73fe\u304c\u53ef\u80fd\u3067\u3059\u3002\n  <\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u30d2\u30fc\u30ed\u30fc\u30d3\u30b8\u30e5\u30a2\u30eb<\/strong><br \/>\n      Web\u30da\u30fc\u30b8\u306e\u6700\u4e0a\u90e8\u306b\u5927\u304d\u304f\u8868\u793a\u3055\u308c\u308b\u30e1\u30a4\u30f3\u753b\u50cf\u3084\u52d5\u753b\u3002\u7b2c\u4e00\u5370\u8c61\u3092\u6c7a\u3081\u308b\u91cd\u8981\u306a\u8981\u7d20\u3002\n    <\/p>\n<\/blockquote>\n<h3>\u2461 \u30b9\u30c6\u30c3\u30d7\u578b\u30c1\u30e3\u30fc\u30c8\u6f14\u51fa<\/h3>\n<p>\n    <code>scroll-timeline<\/code> \u306e\u9032\u884c\u5ea6\u3092\u4f7f\u3044\u3001\u8981\u7d20\u306e\u9ad8\u3055\u3092\u5909\u5316\u3055\u305b\u3066\u300c\u4f38\u3073\u308b\u30b0\u30e9\u30d5\u300d\u3092\u4f5c\u308a\u307e\u3059\u3002<br \/>\n    \u6570\u5b57\u3092CSS\u306e <code>counter()<\/code> \u3068\u9023\u643a\u3055\u305b\u308c\u3070\u3001JS\u306a\u3057\u3067\u9032\u884c\u30a2\u30cb\u30e1\u3082\u5b9f\u73fe\u53ef\u80fd\u3067\u3059\u3002\n  <\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1acounter()<\/strong><br \/>\n      CSS\u3067\u81ea\u52d5\u7684\u306b\u9023\u756a\u3084\u30ab\u30a6\u30f3\u30c8\u30a2\u30c3\u30d7\u3092\u8868\u793a\u3067\u304d\u308b\u95a2\u6570\u3002\u30ea\u30b9\u30c8\u3084\u30c1\u30e3\u30fc\u30c8\u306e\u6570\u5b57\u8868\u793a\u306b\u4f7f\u308f\u308c\u308b\u3002\n    <\/p>\n<\/blockquote>\n<h3>\u2462 \u30d1\u30e9\u30e9\u30c3\u30af\u30b9\uff0bSticky\u7d44\u307f\u5408\u308f\u305b<\/h3>\n<p>\n    <code>position: sticky<\/code> \u3068 <code>transform<\/code> \u306e\u4f75\u7528\u3067\u3001\u80cc\u666f\u56fa\u5b9a\u30fb\u524d\u666f\u79fb\u52d5\u306e\u7acb\u4f53\u611f\u3092\u6f14\u51fa\u3002<br \/>\n    GPU\u3067\u63cf\u753b\u3055\u308c\u308b\u305f\u3081\u3001<strong>\u30e2\u30d0\u30a4\u30eb\u3067\u3082\u6ed1\u3089\u304b\u306b\u52d5\u4f5c<\/strong>\u3057\u307e\u3059\u3002\n  <\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aposition: sticky<\/strong><br \/>\n      \u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u306b\u5fdc\u3058\u3066\u8981\u7d20\u304c\u56fa\u5b9a\u30fb\u89e3\u9664\u3055\u308c\u308bCSS\u30d7\u30ed\u30d1\u30c6\u30a3\u3002\u30d8\u30c3\u30c0\u30fc\u3084\u30b5\u30a4\u30c9\u30d0\u30fc\u306e\u56fa\u5b9a\u8868\u793a\u306b\u4f7f\u308f\u308c\u308b\u3002\n    <\/p>\n<\/blockquote>\n<p><em>\u305c\u3072\u30b3\u30fc\u30c9\u3092\u30b3\u30d4\u30da\u3057\u3066\u3001\u307e\u305a\u306f\u52d5\u304b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/em><\/p>\n<hr \/>\n<h2>4. \u6a19\u6e96API vs \u30e9\u30a4\u30d6\u30e9\u30ea\u6bd4\u8f03\u8868<\/h2>\n<table>\n<thead>\n<tr>\n<th>\u6bd4\u8f03\u9805\u76ee<\/th>\n<th>CSS\u6a19\u6e96API<\/th>\n<th>GSAP ScrollTrigger<\/th>\n<th>Lenis\uff0fLocomotive<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30d0\u30f3\u30c9\u30eb\u30b5\u30a4\u30ba<\/td>\n<td>\u8ffd\u52a0\u4e0d\u8981<\/td>\n<td>\u6570\u767eKB\u301cMB<\/td>\n<td>\u7d04\u6570\u767eKB<\/td>\n<\/tr>\n<tr>\n<td>\u4fdd\u5b88\u6027<\/td>\n<td>\u9ad8\u3044\uff08\u6a19\u6e96\u4ed5\u69d8\uff09<\/td>\n<td>\u30d0\u30fc\u30b8\u30e7\u30f3\u4f9d\u5b58<\/td>\n<td>\u66f4\u65b0\u983b\u5ea6\u306b\u6ce8\u610f<\/td>\n<\/tr>\n<tr>\n<td>\u30e9\u30a4\u30bb\u30f3\u30b9<\/td>\n<td>\u4e0d\u8981<\/td>\n<td>\u5546\u7528\u6761\u4ef6\u3042\u308a<\/td>\n<td>OSS\uff08\u5236\u9650\u3042\u308a\uff09<\/td>\n<\/tr>\n<tr>\n<td>\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6<\/td>\n<td>Chrome\u4e2d\u5fc3<\/td>\n<td>Polyfill\u53ef<\/td>\n<td>\u540c\u4e0a<\/td>\n<\/tr>\n<tr>\n<td>\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3<\/td>\n<td>\u6a19\u6e96\u5bfe\u5fdc<\/td>\n<td>\u30ab\u30b9\u30bf\u30e0\u5b9f\u88c5<\/td>\n<td>\u30ab\u30b9\u30bf\u30e0\u5b9f\u88c5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n    \u5c0f\u301c\u4e2d\u898f\u6a21\u30b5\u30a4\u30c8\u3067\u306f<strong>CSS\u6a19\u6e96API\u3067\u5341\u5206<\/strong>\u3002<br \/>\n    \u5927\u898f\u6a21\u30fb\u591a\u6bb5\u5236\u5fa1\u3067\u306f<strong>GSAP\u3084Lenis<\/strong>\u306e\u63a1\u7528\u3082\u691c\u8a0e\u3057\u307e\u3057\u3087\u3046\u3002<br \/>\n    \u300c\u3069\u3061\u3089\u3092\u9078\u3076\u304b\u300d\u306f\u8981\u4ef6\u6b21\u7b2c\u3002\u91cd\u8981\u306a\u306e\u306f<strong>\u5fc5\u8981\u5341\u5206\u306a\u6280\u8853\u9078\u5b9a<\/strong>\u3067\u3059\u3002\n  <\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aGSAP ScrollTrigger<\/strong><br \/>\n      JavaScript\u88fd\u306e\u9ad8\u6a5f\u80fd\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u30e9\u30a4\u30d6\u30e9\u30eaGSAP\u306e\u62e1\u5f35\u3002\u30b9\u30af\u30ed\u30fc\u30eb\u9023\u52d5\u30a2\u30cb\u30e1\u3092\u67d4\u8edf\u306b\u5236\u5fa1\u3067\u304d\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aLenis\uff0fLocomotive<\/strong><br \/>\n      \u306a\u3081\u3089\u304b\u306a\u30b9\u30af\u30ed\u30fc\u30eb\u3084\u30d1\u30e9\u30e9\u30c3\u30af\u30b9\u6f14\u51fa\u3092\u5b9f\u73fe\u3059\u308bJavaScript\u30e9\u30a4\u30d6\u30e9\u30ea\u3002\u30c7\u30b6\u30a4\u30f3\u6027\u91cd\u8996\u306e\u30b5\u30a4\u30c8\u3067\u5229\u7528\u3055\u308c\u308b\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aPolyfill<\/strong><br \/>\n      \u53e4\u3044\u30d6\u30e9\u30a6\u30b6\u3067\u3082\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u4f7f\u3048\u308b\u3088\u3046\u306b\u3059\u308b\u8ffd\u52a0\u30b9\u30af\u30ea\u30d7\u30c8\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aOSS\uff08\u30aa\u30fc\u30d7\u30f3\u30bd\u30fc\u30b9\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\uff09<\/strong><br \/>\n      \u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u304c\u516c\u958b\u3055\u308c\u3001\u8ab0\u3067\u3082\u5229\u7528\u30fb\u6539\u5909\u3067\u304d\u308b\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3002\n    <\/p>\n<\/blockquote>\n<hr \/>\n<h2>5. \u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\uff06\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u8a2d\u8a08\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/h2>\n<p>\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092<strong>\u8ab0\u3067\u3082\u5feb\u9069\u306b<\/strong>\u697d\u3057\u3081\u308b\u3088\u3046\u306b\u3059\u308b\u306b\u306f\u3001<code>@media (prefers-reduced-motion)<\/code> \u3078\u306e\u5bfe\u5fdc\u304c\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/p>\n<pre><code>@media (prefers-reduced-motion: reduce) {\r\n  .scroll-anim {\r\n    animation: none;\r\n  }\r\n}<\/code><\/pre>\n<p>\u52a0\u3048\u3066\u3001\u793e\u5185\u30ec\u30d3\u30e5\u30fc\u3067\u4ee5\u4e0b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li><code>transform<\/code>\uff0f<code>opacity<\/code> \u4ee5\u5916\u3092\u5909\u66f4\u3057\u306a\u3044<\/li>\n<li><code>will-change<\/code> \u306f\u6700\u5c0f\u9650\u306b<\/li>\n<li>CLS\u30fbLCP\u3092\u5c0e\u5165\u524d\u5f8c\u3067\u8a08\u6e2c<\/li>\n<li>Lighthouse\u3067\u30b9\u30b3\u30a2\u3092\u5b9a\u671f\u30c1\u30a7\u30c3\u30af<\/li>\n<li>\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\uff08\u975e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\uff09\u3092\u6587\u66f8\u5316<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u3092<strong>\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8\u5316<\/strong>\u3057\u3066\u5171\u6709\u3059\u308c\u3070\u3001\u518d\u73fe\u6027\u3042\u308b\u958b\u767a\u4f53\u5236\u3092\u7bc9\u3051\u307e\u3059\u3002<\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3<\/strong><br \/>\n      \u5e74\u9f62\u3084\u969c\u5bb3\u306e\u6709\u7121\u306b\u95a2\u308f\u3089\u305a\u3001\u8ab0\u3067\u3082Web\u3092\u5feb\u9069\u306b\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u8a2d\u8a08\u601d\u60f3\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a@media (prefers-reduced-motion)<\/strong><br \/>\n      \u30e6\u30fc\u30b6\u30fc\u304c\u300c\u52d5\u304d\u3092\u6e1b\u3089\u3057\u305f\u3044\u300d\u3068\u8a2d\u5b9a\u3057\u3066\u3044\u308b\u5834\u5408\u3001\u30a2\u30cb\u30e1\u30fc\u30b7\u30e7\u30f3\u3092\u6291\u5236\u3059\u308b\u305f\u3081\u306eCSS\u30e1\u30c7\u30a3\u30a2\u30af\u30a8\u30ea\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af<\/strong><br \/>\n      \u6a5f\u80fd\u975e\u5bfe\u5fdc\u306e\u74b0\u5883\u3067\u3082\u6700\u4f4e\u9650\u306e\u8868\u793a\u3084\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306e\u4ee3\u66ff\u624b\u6bb5\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aLighthouse<\/strong><br \/>\n      Google\u304c\u63d0\u4f9b\u3059\u308bWeb\u30b5\u30a4\u30c8\u306e\u54c1\u8cea\u8a55\u4fa1\u30c4\u30fc\u30eb\u3002\u30d1\u30d5\u30a9\u30fc\u30de\u30f3\u30b9\u3084\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u306a\u3069\u3092\u81ea\u52d5\u8a3a\u65ad\u3067\u304d\u308b\u3002\n    <\/p>\n<\/blockquote>\n<hr \/>\n<h2>6. \u7d50\u8ad6\uff5c\u8efd\u304f\u3001\u3084\u3055\u3057\u304f\u3001\u6a19\u6e96\u3067\u52d5\u304f\u672a\u6765\u3078<\/h2>\n<p>\n    <code>scroll-timeline<\/code> \u3068 <code>view-timeline<\/code> \u306f\u3001<br \/>\n    <strong>\u300cJS\u3067\u52d5\u304b\u3059\u300d\u304b\u3089\u300cCSS\u3067\u5236\u5fa1\u3059\u308b\u300d<\/strong> \u3078\u306e\u5927\u304d\u306a\u8ee2\u63db\u70b9\u3067\u3059\u3002<\/p>\n<p>    \u30fbCore Web Vitals\u3092\u5b88\u308a\u306a\u304c\u3089\u52d5\u304d\u3092\u52a0\u3048\u3089\u308c\u308b<br \/>\n    \u30fb\u30d6\u30e9\u30a6\u30b6\u6a19\u6e96\u3067\u9577\u671f\u7684\u306a\u4fdd\u5b88\u304c\u3057\u3084\u3059\u3044<br \/>\n    \u30fb\u30a2\u30af\u30bb\u30b7\u30d6\u30eb\u306aUX\u3092\u8a2d\u8a08\u3057\u3084\u3059\u3044<\/p>\n<p>    \u4eca\u5f8c\u306f\u3001\u3053\u308c\u3089\u306e\u6a19\u6e96API\u304c<strong>\u65b0\u3057\u3044\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3<\/strong>\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u3002<br \/>\n    \u307e\u305a\u306f\u65e2\u5b58\u30da\u30fc\u30b8\u306e\u4e00\u90e8\u304b\u3089\u5c0e\u5165\u3057\u3001\u6ed1\u3089\u304b\u3055\u3068\u5b89\u5b9a\u6027\u3092\u4f53\u611f\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n    <strong>\u305c\u3072\u6b21\u306eLP\u3067\u300cCSS\u3060\u3051\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u6f14\u51fa\u300d\u306b\u6311\u6226\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/strong>\n  <\/p>\n<blockquote>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1aUX\uff08\u30e6\u30fc\u30b6\u30fc\u30a8\u30af\u30b9\u30da\u30ea\u30a8\u30f3\u30b9\uff09<\/strong><br \/>\n      \u30e6\u30fc\u30b6\u30fc\u304cWeb\u30b5\u30a4\u30c8\u3084\u30b5\u30fc\u30d3\u30b9\u3092\u5229\u7528\u3059\u308b\u969b\u306b\u611f\u3058\u308b\u4f53\u9a13\u3084\u6e80\u8db3\u5ea6\u3002\n    <\/p>\n<p>\n      <strong>\u7528\u8a9e\u89e3\u8aac\uff1a\u30d9\u30fc\u30b9\u30e9\u30a4\u30f3<\/strong><br \/>\n      \u6280\u8853\u3084\u4ed5\u69d8\u306e\u300c\u6700\u4f4e\u9650\u6e80\u305f\u3059\u3079\u304d\u57fa\u6e96\u300d\u3002\u4eca\u5f8c\u306e\u6a19\u6e96\u3068\u306a\u308b\u30e9\u30a4\u30f3\u3002\n    <\/p>\n<\/blockquote>\n<hr \/>\n<\/div>\n","protected":false},"featured_media":1727,"template":"","_links":{"self":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/route\/1720"}],"collection":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/route"}],"about":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/types\/route"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/media\/1727"}],"wp:attachment":[{"href":"https:\/\/route-zero.com\/recruit\/wp-json\/wp\/v2\/media?parent=1720"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}