{"id":6472,"date":"2023-10-11T17:32:28","date_gmt":"2023-10-11T08:32:28","guid":{"rendered":"https:\/\/engineering.webstudio168.jp\/?p=6472"},"modified":"2023-10-11T17:32:30","modified_gmt":"2023-10-11T08:32:30","slug":"google-chrome-118-css-scope-rules","status":"publish","type":"post","link":"https:\/\/engineering.webstudio168.jp\/blog\/google-chrome-118-css-scope-rules\/","title":{"rendered":"Google Chrome 118\u306b\u8ffd\u52a0\u3055\u308c\u305fCSS\u30eb\u30fc\u30eb\u300c@scope\u300d\u306e\u57fa\u790e\u77e5\u8b58\u3068\u4f7f\u3044\u65b9"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u76ee\u6b21<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/google-chrome-118-css-scope-rules\/#scope%E3%81%A8%E3%81%AF%EF%BC%9F\" >@scope\u3068\u306f\uff1f<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/google-chrome-118-css-scope-rules\/#scope%E3%81%AE%E5%AF%BE%E5%BF%9C%E3%83%96%E3%83%A9%E3%82%A6%E3%82%B6\" >@scope\u306e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/google-chrome-118-css-scope-rules\/#PC\" >PC<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/google-chrome-118-css-scope-rules\/#%E3%82%B9%E3%83%9E%E3%83%9B\" >\u30b9\u30de\u30db<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/engineering.webstudio168.jp\/blog\/google-chrome-118-css-scope-rules\/#%E3%81%BE%E3%81%A8%E3%82%81\" >\u307e\u3068\u3081<\/a><\/li><\/ul><\/nav><\/div>\n\n<p class=\"wp-block-paragraph\">CSS\u306e\u65b0\u6a5f\u80fd\u3068\u3057\u3066\u5b9f\u88c5\u3055\u308c\u305f\u300c@scope\u300d\u30eb\u30fc\u30eb\u306b\u3064\u3044\u3066\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u30c7\u30b6\u30a4\u30ca\u30fc\u3001\u30b3\u30fc\u30c0\u30fc\u3001\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u65b9\u306f\u8981\u30c1\u30a7\u30c3\u30af\u3067\u3059\u3002\u203bGoogle Chrome 118\u5b89\u5b9a\u7248\u30ea\u30ea\u30fc\u30b9\u6642\u306e\u8a18\u4e8b\u3067\u3059<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"scope%E3%81%A8%E3%81%AF%EF%BC%9F\"><\/span>@scope\u3068\u306f\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">@scope\u306fCSS\u306b\u304a\u3044\u3066\u3001\u30b9\u30bf\u30a4\u30eb\u304c\u9069\u7528\u3055\u308c\u308b\u7bc4\u56f2\u3092\u660e\u793a\u7684\u306b\u6307\u5b9a\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u9069\u7528\u30eb\u30fc\u30eb\u3092CSS\u30d5\u30a1\u30a4\u30eb\u5185\u306e\u4e00\u3064\u306e\u30d6\u30ed\u30c3\u30af\u306b\u307e\u3068\u3081\u308b\u3053\u3068\u3067\u53ef\u8aad\u6027\u3092\u9ad8\u3081\u3001\u4fdd\u5b88\u6027\u3092\u5411\u4e0a\u3059\u308b\u610f\u56f3\u3067\u7b56\u5b9a\u304c\u9032\u3081\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f8b\u3048\u3070\u4ee5\u4e0b\u306e\u4f8b\u3067\u306f\u3001\u7279\u5b9a\u306e\u30bb\u30ec\u30af\u30bf\uff08<code>&lt;header&gt;<\/code>\uff09\u306e\u5b50\u5b6b\u8981\u7d20\u306e<code>&lt;span&gt;<\/code>\u306b\u306e\u307f\u30b9\u30bf\u30a4\u30eb\u304c\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-css\" data-file=\"scope-sample-001.css\" data-lang=\"CSS\"><code>@scope (header) {\n    span { color: red;}\n}<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><code>@scope(\u30bb\u30ec\u30af\u30bf){}<\/code>\u3067\u5927\u67a0\u3092\u56f2\u3044\u3001\u4e2d\u306b\u306f\u3044\u3064\u3082\u901a\u308aCSS\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u6307\u5b9a\u3057\u3066\u3042\u3052\u308c\u3070OK\u3067\u3059\u3002<code>@media<\/code>\u3084<code>@supports<\/code>\u3068\u540c\u3058\u611f\u899a\u3067\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u306d\u3002\u4e0b\u8a18\u3068\u540c\u7fa9\u306b\u306a\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-css\" data-file=\"non-scope.css\" data-lang=\"CSS\"><code>header span {\n  color: red;\n}<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fbf\u5229\u306a\u70b9\u306f\u300c<code>header<\/code>\u300d\u306e\u6307\u5b9a\u3092\u6bce\u56de\u66f8\u304f\u5fc5\u8981\u304c\u306a\u304f\u306a\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\u3002\u4e0b\u8a18\u306e\u3088\u3046\u306b\u307e\u3068\u3081\u3066\u3057\u307e\u3048\u3070\u3001\u5404\u30d6\u30ed\u30c3\u30af\u3059\u3079\u3066\u306b<code>header<\/code>\u3068\u3044\u3046\u8a18\u8ff0\u3092\u3057\u306a\u304f\u3066\u826f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-css\" data-file=\"css-scope-002.css\" data-lang=\"CSS\"><code>@scope (header) {\n    span {\n        color: red;\n    }\n    a:hover {\n        text-decoration: green wavy underline;\n    }\n    .logo {\n       width: 20%;\n       height: auto;\n    }\n}<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30b9\u30bf\u30a4\u30eb\u304c\u30d0\u30c3\u30c6\u30a3\u30f3\u30b0\u3059\u308b\u3068\u304d\u306f\u3001@scope\u3067\u6307\u5b9a\u3057\u305f\u30bb\u30ec\u30af\u30bf\u304b\u3089\u306e\u968e\u5c64\u306e\u6df1\u3055\u304c<strong>\u6d45\u3044\u65b9\u304c<\/strong>\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"hcb_wrap\"><pre class=\"prism undefined-numbers lang-css\" data-file=\"css-scope-003.css\" data-lang=\"CSS\"><code>@scope (header) {\n    span.kore { color: red;}\n}\n\/* \u2191\u3068\u2193\u3067\u30b9\u30bf\u30a4\u30eb\u304c\u30d0\u30c3\u30c6\u30a3\u30f3\u30b0 *\/\n@scope (body) {\n    span.kore { color: blue;}\n}<\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0a\u8a18\u306e\u4f8b\u3067\u306f<code>header span.kore{}<\/code>\u3068<code>body span.kore{}<\/code>\u304c\u5e72\u6e09\u3057\u3066\u3057\u307e\u3063\u3066\u3044\u307e\u3059\u3002\u901a\u5e38\u306eCSS\u306e\u8a18\u8ff0\u3067\u3042\u308c\u3070\u3001<code>body span.kore{}<\/code>\u306e\u65b9\u304c\u5f37\u3044\u306e\u3067\u6587\u5b57\u8272\u306f<span class=\"bold-blue\">\u9752<\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3057\u304b\u3057\u3001\u3053\u306e<code>@scope<\/code>\u3067\u306f\u6df1\u5ea6\u304c\u6d45\u3044\u65b9\u304c\u9069\u7528\u3055\u308c\u308b\u306e\u3067\u6587\u5b57\u8272\u306f<span class=\"bold-red\">\u8d64<\/span>\u3068\u306a\u308a\u307e\u3059\u3002\u5229\u7528\u304c\u4e00\u822c\u7684\u306b\u306a\u3063\u305f\u3089\u7d50\u69cb\u6df7\u4e71\u3057\u305d\u3046\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"scope%E3%81%AE%E5%AF%BE%E5%BF%9C%E3%83%96%E3%83%A9%E3%82%A6%E3%82%B6\"><\/span>@scope\u306e\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">2023\u5e7410\u6708\u6642\u70b9\u3067\u306f\u3001\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\u306f\u6700\u65b0\u306eGoogle Chrome\u3057\u304b\u3042\u308a\u307e\u305b\u3093\u3002\u6b8b\u5ff5\u306a\u304c\u3089\u30af\u30ed\u30b9\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u304c\u5fc5\u8981\u306a\u5834\u5408\u306b\u306f\u3053\u306e@scope\u30eb\u30fc\u30eb\u306f\u4f7f\u3046\u3053\u3068\u304c\u51fa\u6765\u307e\u305b\u3093\u3002<br>\u3010\u53c2\u8003\u3011<a href=\"https:\/\/caniuse.com\/css-cascade-scope\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">https:\/\/caniuse.com\/css-cascade-scope<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>@scope<\/code>\u3068\u3088\u304f\u4f3c\u3066\u3044\u308b<code>:scope<\/code>\u304c\u3042\u308a\u307e\u3059\u304c\u3001<code>:scope<\/code>\u306f\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u3059\u3079\u3066\u5bfe\u5fdc\u6e08\u307f\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u6df7\u540c\u3057\u306a\u3044\u3088\u3046\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<code>@scope<\/code>\u306f\u73fe\u72b6\u3067\u306f\u3042\u307e\u308a\u4f7f\u3046\u6a5f\u4f1a\u304c\u306a\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u305f\u3060\u3057\u3001Chrome\u3067\u306e\u307f\u5229\u7528\u3059\u308bGoogle Chrome\u306e\u62e1\u5f35\u6a5f\u80fd\u306a\u3069\u3092\u5236\u4f5c\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u5229\u7528\u3092\u8996\u91ce\u306b\u5165\u308c\u3066\u3082\u826f\u3055\u305d\u3046\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PC\"><\/span>PC<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><th>\u30d6\u30e9\u30a6\u30b6<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u5bfe\u5fdc<\/th><\/tr><tr><td>Firefox<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d7<\/td><\/tr><tr><td>Edge<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d7<\/td><\/tr><tr><td>Safari<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d7<\/td><\/tr><tr><td>Chrome\uff08118\uff5e\uff09<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u3007<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">@scope\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\uff08PC\uff09<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%82%B9%E3%83%9E%E3%83%9B\"><\/span>\u30b9\u30de\u30db<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table><tbody><tr><th>\u30d6\u30e9\u30a6\u30b6<\/th><th class=\"has-text-align-center\" data-align=\"center\">\u5bfe\u5fdc<\/th><\/tr><tr><td>Android Firefox<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d7<\/td><\/tr><tr><td>Android \u57cb\u3081\u8fbc\u307f\u30d6\u30e9\u30a6\u30b6<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d7<\/td><\/tr><tr><td>iOS Safari<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d7<\/td><\/tr><tr><td>Android Chrome<\/td><td class=\"has-text-align-center\" data-align=\"center\">\u00d7<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">@scope\u5bfe\u5fdc\u30d6\u30e9\u30a6\u30b6\uff08\u30b9\u30de\u30db\uff09<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b9\u30de\u30db\u3082\u975e\u5bfe\u5fdc\u306a\u306e\u3067\u3001<code>@scope<\/code>\u306f\u307e\u3060\u4f7f\u308f\u306a\u3044\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E3%81%BE%E3%81%A8%E3%82%81\"><\/span>\u307e\u3068\u3081<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p 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Chrome 118\u5b89\u5b9a\u7248\u30ea\u30ea\u30fc\u30b9\u6642\u306e\u8a18\u4e8b\u3067\u3059 @scope\u3068 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