{"id":8881,"date":"2025-06-11T15:29:00","date_gmt":"2025-06-11T06:29:00","guid":{"rendered":"https:\/\/fastcoding.jp\/blog\/?p=8881"},"modified":"2025-07-02T15:25:47","modified_gmt":"2025-07-02T06:25:47","slug":"modal-css","status":"publish","type":"post","link":"https:\/\/fastcoding.jp\/blog\/all\/frontend\/modal-css\/","title":{"rendered":"\u3053\u306e\u30c7\u30b6\u30a4\u30f3\u3001\u3069\u3046\u30b3\u30fc\u30c7\u30a3\u30f3\u30b0\u3059\u308b\uff1f #6\uff5c\u30e2\u30fc\u30c0\u30eb\u3092\u5916\u5074\u30af\u30ea\u30c3\u30af\u3067\u9589\u3058\u308b\uff1fJS\u6700\u5c0f\u9650\u3067\u3082\u3057\u3063\u304b\u308a\u52d5\u304f\uff06\u30a2\u30af\u30bb\u30b7\u30d6\u30eb\u306b\u8a2d\u8a08\u3059\u308b\u65b9\u6cd5"},"content":{"rendered":"<div class=\"the_content\">\n<h3 class=\"wp-block-heading\">\u30e2\u30fc\u30c0\u30eb\u306f\u300c\u898b\u305f\u76ee\u300d\u3088\u308a\u300c\u3075\u308b\u307e\u3044\u300d\u304c\u5927\u4e8b<\/h3>\n\n\n\n<p>\u30e2\u30fc\u30c0\u30eb\u30c0\u30a4\u30a2\u30ed\u30b0\u3067\u3001\u300c\u5916\u5074\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3089\u9589\u3058\u308b\u3088\u3046\u306b\u3057\u3066\u307b\u3057\u3044\u300d\u3068\u8a00\u308f\u308c\u308b\u3053\u3068\u3001\u79c1\u3082\u73fe\u5834\u3067\u4f55\u5ea6\u3082\u7d4c\u9a13\u3057\u3066\u3044\u307e\u3059\u3002<br>\u78ba\u304b\u306b\u3001\u898b\u305f\u76ee\u3092\u6574\u3048\u308b\u306e\u306f\u7c21\u5358\u3002\u3067\u3082\u3001<strong>\u201c\u3069\u3046\u9589\u3058\u308b\u304b\u201d\u3084\u201c\u3069\u3053\u306b\u30d5\u30a9\u30fc\u30ab\u30b9\u3092\u5f53\u3066\u308b\u304b\u201d\u3068\u3044\u3063\u305f\u3075\u308b\u307e\u3044\u3092\u3061\u3083\u3093\u3068\u8a2d\u8a08\u3059\u308b\u306e\u306f\u3001\u601d\u3063\u3066\u3044\u308b\u4ee5\u4e0a\u306b\u7e4a\u7d30\u306a\u4f5c\u696d<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u6700\u8fd1\u306f\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\uff08a11y\uff09\u8981\u4ef6\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u9762\u3082\u5897\u3048\u3066\u304d\u3066\u304a\u308a\u3001<br>\u300c<strong>\u3068\u308a\u3042\u3048\u305a\u9589\u3058\u3089\u308c\u308c\u3070OK<\/strong>\u300d\u3067\u306f\u901a\u7528\u3057\u306a\u3044\u3053\u3068\u3082\u591a\u304f\u306a\u3063\u3066\u304d\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u305d\u3053\u3067\u4eca\u56de\u306f\u3001\u79c1\u304c\u5b9f\u52d9\u3067\u8fbf\u308a\u7740\u3044\u305f\u7d50\u8ad6\u2015\u2015<br><strong>\u300c\u6700\u5c0f\u9650\u306eJS\u3067\u3001\u3057\u3063\u304b\u308a\u9589\u3058\u3089\u308c\u3066\u3001\u304d\u3061\u3093\u3068\u64cd\u4f5c\u3067\u304d\u308b\u30e2\u30fc\u30c0\u30eb\u300d<\/strong>\u306e\u5b9f\u88c5\u65b9\u6cd5\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u7d50\u8ad6\uff1a<code>&lt;dialog&gt;<\/code> \u8981\u7d20\uff0b\u6700\u5c0f\u9650JS\u304c\u3001\u4eca\u306e\u30e2\u30fc\u30c0\u30eb\u306e\u6700\u9069\u89e3<\/h2>\n\n\n\n<p>\u73fe\u5728\u306e\u30d6\u30e9\u30a6\u30b6\u74b0\u5883\uff082025\u5e74\uff09\u306b\u304a\u3044\u3066\u3001\u30e2\u30fc\u30c0\u30eb\u306e\u5b9f\u88c5\u3067\u6700\u3082\u30d0\u30e9\u30f3\u30b9\u304c\u826f\u3044\u306e\u306f\u3001<br><strong>HTML\u6a19\u6e96\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u308b <code>&lt;dialog&gt;<\/code> \u8981\u7d20\u3092\u4f7f\u3046\u65b9\u6cd5<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><code>&lt;dialog&gt;<\/code> \u306e\u7279\u9577<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>&lt;dialog&gt;<\/code> \u8981\u7d20\u3092 <code>dialog.showModal()<\/code> \u3067\u958b\u304d\u3001<code>.close()<\/code> \u3067\u9589\u3058\u308b\u3060\u3051<\/li>\n\n\n\n<li><strong>\u5916\u5074\u306e\u30af\u30ea\u30c3\u30af\u3084 ESC \u30ad\u30fc\u3067\u306e\u9589\u3058\u52d5\u4f5c\u304c\u30c7\u30d5\u30a9\u30eb\u30c8\u3067\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b<\/strong><\/li>\n\n\n\n<li><strong>\u30ad\u30fc\u30dc\u30fc\u30c9\u30d5\u30a9\u30fc\u30ab\u30b9\u3082\u81ea\u52d5\u3067\u30e2\u30fc\u30c0\u30eb\u5185\u306b\u9589\u3058\u8fbc\u3081\u3089\u308c\u308b\uff08\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7\uff09<\/strong><\/li>\n\n\n\n<li><code>role=\"dialog\"<\/code>\u3001<code>aria-modal=\"true\"<\/code> \u306a\u3069\u306e\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5c5e\u6027\u3082\u57fa\u672c\u7684\u306b\u4e0d\u8981\uff08\u81ea\u52d5\u3067\u4ed8\u4e0e\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u3060\u3051\u3067\u3001<strong>\u30e2\u30fc\u30c0\u30eb\u306b\u5fc5\u8981\u306a\u6319\u52d5\u304c\u307b\u307c\u6a19\u6e96\u3067\u307e\u304b\u306a\u3048\u308b<\/strong>\u305f\u3081\u3001<br>\u300cJavaScript\u3092\u5c11\u306a\u304f\u3001\u3067\u3082\u3061\u3083\u3093\u3068\u52d5\u304f\u3082\u306e\u3092\u4f5c\u308a\u305f\u3044\u300d\u3068\u3044\u3046\u73fe\u5834\u306b\u306f\u6700\u9069\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u52d9\u3067\u306e\u5224\u65ad\u30dd\u30a4\u30f3\u30c8<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8981\u4ef6<\/th><th><code>&lt;dialog&gt;<\/code> \u306f\u5bfe\u5fdc\u6e08\u307f\uff1f<\/th><\/tr><\/thead><tbody><tr><td>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3067\u9589\u3058\u305f\u3044<\/td><td>\u2705 \u30c7\u30d5\u30a9\u30eb\u30c8\u5bfe\u5fdc<\/td><\/tr><tr><td>ESC\u30ad\u30fc\u3067\u9589\u3058\u305f\u3044<\/td><td>\u2705 \u81ea\u52d5\u3067\u53cd\u5fdc<\/td><\/tr><tr><td>\u30d5\u30a9\u30fc\u30ab\u30b9\u5236\u5fa1\u3057\u305f\u3044<\/td><td>\u2705 \u81ea\u52d5\u3067\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7<\/td><\/tr><tr><td>\u30b9\u30af\u30ea\u30fc\u30f3\u30ea\u30fc\u30c0\u30fc\u5bfe\u5fdc\u3057\u305f\u3044<\/td><td>\u2705 \u81ea\u52d5\u3067\u30ed\u30fc\u30eb\u4ed8\u4e0e\uff06\u30d5\u30a9\u30fc\u30ab\u30b9\u79fb\u52d5<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u3046\u3057\u305f\u6a5f\u80fd\u304c\u307b\u307c\u3059\u3079\u3066\u300c\u4f55\u3082\u3057\u306a\u304f\u3066\u3082\u52b9\u304f\u300d\u3068\u3044\u3046\u306e\u306f\u3001\u30e2\u30fc\u30c0\u30eb\u5b9f\u88c5\u306e\u5de5\u6570\u3092\u5927\u304d\u304f\u524a\u6e1b\u3057\u307e\u3059\u3002<br>\u79c1\u81ea\u8eab\u3082\u3001\u73fe\u5728\u3067\u306f <strong>\u30e2\u30fc\u30c0\u30eb\u306f\u307e\u305a <code>&lt;dialog&gt;<\/code> \u30d9\u30fc\u30b9\u3067\u7d44\u3093\u3067\u307f\u3066\u3001\u8db3\u308a\u306a\u3051\u308c\u3070\u62e1\u5f35\u3059\u308b<\/strong>\u3068\u3044\u3046\u30a2\u30d7\u30ed\u30fc\u30c1\u304c\u5b9a\u756a\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><code>&lt;dialog&gt;<\/code> \u8981\u7d20\u306e\u57fa\u672c\u69cb\u6210\u3068\u4f7f\u3044\u65b9<\/h2>\n\n\n\n<p>HTML5\u3067\u8ffd\u52a0\u3055\u308c\u305f <code>&lt;dialog&gt;<\/code> \u8981\u7d20\u306f\u3001<strong>\u30e2\u30fc\u30c0\u30eb\u30c0\u30a4\u30a2\u30ed\u30b0\u3092\u201c\u30cd\u30a4\u30c6\u30a3\u30d6\u306b\u201d\u5b9f\u88c5\u3067\u304d\u308b\u8981\u7d20<\/strong>\u3067\u3059\u3002<br>\u5f93\u6765\u306e\u3088\u3046\u306b div \u3092\u7d76\u5bfe\u914d\u7f6e\u3057\u3001JavaScript\u3067\u958b\u9589\u30fb\u30d5\u30a9\u30fc\u30ab\u30b9\u5236\u5fa1\u3092\u4e00\u304b\u3089\u66f8\u304f\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001<code>&lt;dialog&gt;<\/code> \u306e\u57fa\u672c\u7684\u306a\u69cb\u6210\u3068\u958b\u9589\u65b9\u6cd5\u3092\u5b9f\u88c5\u4f8b\u3068\u3068\u3082\u306b\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_JodbwjJ\" src=\"\/\/codepen.io\/anon\/embed\/JodbwjJ?height=450&amp;theme-id=1&amp;slug-hash=JodbwjJ&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed JodbwjJ\" title=\"CodePen Embed JodbwjJ\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5404\u8981\u7d20\u306e\u610f\u5473<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8981\u7d20<\/th><th>\u89e3\u8aac<\/th><\/tr><\/thead><tbody><tr><td><code>&lt;dialog&gt;<\/code><\/td><td>\u30e2\u30fc\u30c0\u30eb\u672c\u4f53\u3002\u9589\u3058\u3066\u3044\u308b\u3068DOM\u4e0a\u306b\u306f\u8868\u793a\u3055\u308c\u306a\u3044<\/td><\/tr><tr><td><code>&lt;form method=\"dialog\"&gt;<\/code><\/td><td>\u4e2d\u306b\u5165\u308c\u308b\u3053\u3068\u3067\u3001<code>&lt;button&gt;<\/code> \u3092\u62bc\u3057\u305f\u3068\u304d\u306b\u81ea\u52d5\u7684\u306b\u9589\u3058\u308b<\/td><\/tr><tr><td><code>&lt;button&gt;<\/code><\/td><td>\u7279\u5225\u306a\u5c5e\u6027\u306a\u3057\u3067\u3082\u300c\u9589\u3058\u308b\u30dc\u30bf\u30f3\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b<\/td><\/tr><tr><td><code>&lt;button id=\"openBtn\"&gt;<\/code><\/td><td>JavaScript\u3067\u30e2\u30fc\u30c0\u30eb\u3092\u958b\u304f\u30c8\u30ea\u30ac\u30fc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">JavaScript\u3067\u306e\u958b\u9589\u5236\u5fa1\u3000\u30fc\u3000<code>showModal()<\/code> vs <code>show()<\/code><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>.showModal()<\/code> \u306f\u80cc\u666f\u3092\u30ed\u30c3\u30af\u3057\u3066\u8868\u793a\uff08<strong>\u30e2\u30fc\u30c0\u30eb\u8868\u793a<\/strong>\uff09<\/li>\n\n\n\n<li><code>.show()<\/code> \u306f\u80cc\u666f\u3092\u30ed\u30c3\u30af\u305b\u305a\u3001\u30a4\u30f3\u30e9\u30a4\u30f3\u8868\u793a\uff08\u30c4\u30fc\u30eb\u30c1\u30c3\u30d7\u306e\u3088\u3046\u306a\u7528\u9014\u5411\u3051\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u307b\u3068\u3093\u3069\u306e\u30b1\u30fc\u30b9\u3067\u306f <code>.showModal()<\/code> \u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">CSS\u3067\u30e2\u30fc\u30c0\u30eb\u306e\u898b\u305f\u76ee\u3092\u6574\u3048\u308b<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>dialog::backdrop<\/code> \u306f <code>&lt;dialog&gt;<\/code> \u56fa\u6709\u306e\u7591\u4f3c\u8981\u7d20\u3067\u3001<strong>\u80cc\u666f\u306e\u534a\u900f\u660e\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4<\/strong>\u306b\u4f7f\u3048\u307e\u3059<\/li>\n\n\n\n<li>\u30b9\u30bf\u30a4\u30ea\u30f3\u30b0\u306f\u901a\u5e38\u306e\u8981\u7d20\u3068\u540c\u69d8\u306b\u53ef\u80fd\uff08\u203b\u305f\u3060\u3057 display: flex \u7b49\u304c\u5fc5\u8981\u306a\u5834\u5408\u3082\uff09<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ce8\u610f\u70b9\uff1a<code>form<\/code> \u304c\u306a\u3044\u3068\u300c\u9589\u3058\u308b\u30dc\u30bf\u30f3\u300d\u304c\u6a5f\u80fd\u3057\u306a\u3044<\/h3>\n\n\n\n<p>\u3053\u308c\u306f\u610f\u5916\u3068\u30cf\u30de\u308a\u304c\u3061\u306a\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<br>\u30e2\u30fc\u30c0\u30eb\u5185\u306e\u300c\u9589\u3058\u308b\u300d\u30dc\u30bf\u30f3\u306f\u3001<code>&lt;form method=\"dialog\"&gt;<\/code> \u306e\u4e2d\u306b\u3042\u308b\u3053\u3068\u3067\u3001<strong>\u81ea\u52d5\u7684\u306b <code>.close()<\/code> \u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/strong><\/p>\n\n\n\n<p>\u30dc\u30bf\u30f3\u3060\u3051\u3067\u9589\u3058\u305f\u3044\u5834\u5408\u306f\u3001\u660e\u793a\u7684\u306b <code>.close()<\/code> \u3092\u547c\u3076\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5229\u7528\u53ef\u80fd\u30d6\u30e9\u30a6\u30b6\uff082025\u5e74\u73fe\u5728\uff09<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u30d6\u30e9\u30a6\u30b6<\/th><th>\u5bfe\u5fdc\u72b6\u6cc1<\/th><\/tr><\/thead><tbody><tr><td>Chrome \/ Edge<\/td><td>\u2705 \u5b8c\u5168\u5bfe\u5fdc<\/td><\/tr><tr><td>Firefox<\/td><td>\u2705 \u5bfe\u5fdc\u6e08\u307f\uff08v98\u301c\uff09<\/td><\/tr><tr><td>Safari\uff08iOS\u542b\u3080\uff09<\/td><td>\u2705 \u5b89\u5b9a\u5bfe\u5fdc\uff08v15.4\u301c\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u4e3b\u8981\u30d6\u30e9\u30a6\u30b6\u306f\u3059\u3079\u3066\u5bfe\u5fdc\u6e08\u307f\u306e\u305f\u3081\u3001<strong>\u5b9f\u52d9\u5c0e\u5165\u3082\u5b89\u5fc3<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b <code>&lt;dialog&gt;<\/code> \u3092\u4f7f\u3048\u3070\u3001<strong>\u6700\u4f4e\u9650\u306e\u30b3\u30fc\u30c9\u3067\u30e2\u30fc\u30c0\u30eb\u306e\u57fa\u672c\u6a5f\u80fd\u304c\u307b\u307c\u5b9f\u88c5\u6e08\u307f\u306e\u72b6\u614b\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3067\u304d\u308b<\/strong>\u3068\u3044\u3046\u306e\u304c\u5927\u304d\u306a\u9b45\u529b\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306f\u3001<strong>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3084 ESC \u30ad\u30fc\u3067\u306e\u81ea\u52d5\u7684\u306a\u9589\u3058\u52d5\u4f5c<\/strong>\u306b\u3064\u3044\u3066\u3001\u5177\u4f53\u7684\u306b\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u5916\u5074\u30af\u30ea\u30c3\u30af\u3084 ESC\u30ad\u30fc\u306b\u3088\u308b\u9589\u3058\u65b9\u306e\u6319\u52d5<\/h2>\n\n\n\n<p>\u30e2\u30fc\u30c0\u30eb\u3092\u958b\u3044\u305f\u3042\u3068\u3001\u30e6\u30fc\u30b6\u30fc\u304c<strong>\u80cc\u666f\u90e8\u5206\uff08\u30e2\u30fc\u30c0\u30eb\u306e\u5916\u5074\uff09\u3092\u30af\u30ea\u30c3\u30af\u3057\u305f\u3068\u304d\u306b\u9589\u3058\u308b\u304b\u3069\u3046\u304b<\/strong>\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u4f53\u9a13\u3068\u3057\u3066\u3068\u3066\u3082\u91cd\u8981\u3067\u3059\u3002<br><code>&lt;dialog&gt;<\/code> \u8981\u7d20\u306f\u3001\u3053\u306e\u3042\u305f\u308a\u3082<strong>\u6700\u521d\u304b\u3089\u300c\u3044\u3044\u611f\u3058\u300d\u306b\u52d5\u4f5c\u3059\u308b<\/strong>\u8a2d\u8a08\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5916\u5074\u30af\u30ea\u30c3\u30af\u3067\u9589\u3058\u308b\u306e\u306f\u30c7\u30d5\u30a9\u30eb\u30c8\u4ed5\u69d8<\/h3>\n\n\n\n<p><code>&lt;dialog&gt;<\/code> \u3092 <code>.showModal()<\/code> \u3067\u958b\u304f\u3068\u3001<strong>\u80cc\u666f\u306e <code>::backdrop<\/code> \u304c\u81ea\u52d5\u7684\u306b\u751f\u6210\u3055\u308c\u307e\u3059\u3002<\/strong><br>\u3053\u306e backdrop \u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3068\u3001\u4f55\u3082\u66f8\u304b\u306a\u304f\u3066\u3082\u81ea\u52d5\u3067 <code>.close()<\/code> \u304c\u547c\u3073\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30b3\u30fc\u30c9\u3060\u3051\u3067<strong>\u5916\u5074\u30af\u30ea\u30c3\u30af \u2192 \u30e2\u30fc\u30c0\u30eb\u9589\u3058\u308b<\/strong>\u304c\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dialog.showModal(); \/\/ \u3053\u308c\u3060\u3051\u3067OK<\/code><\/pre>\n\n\n\n<p><strong>\u8ffd\u52a0\u306e\u30a4\u30d9\u30f3\u30c8\u30ea\u30b9\u30ca\u30fc\u4e0d\u8981<\/strong>\u3002\u3059\u3067\u306b\u7d44\u307f\u8fbc\u307e\u308c\u3066\u3044\u308b\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5916\u5074\u30af\u30ea\u30c3\u30af\u3067\u9589\u3058\u3089\u308c\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u3044\u5834\u5408\u306f\uff1f<\/h3>\n\n\n\n<p>\u3082\u3057\u3001\u30e2\u30fc\u30c0\u30eb\u5185\u306e\u64cd\u4f5c\u304c\u5fc5\u9808\uff08\u5165\u529b\u5b8c\u4e86\u307e\u3067\u9589\u3058\u3089\u308c\u306a\u3044\u7b49\uff09\u3067\u3042\u308b\u5834\u5408\u3001<br>\u4ee5\u4e0b\u306e\u3088\u3046\u306b <strong><code>cancel<\/code> \u30a4\u30d9\u30f3\u30c8\u3067\u30ad\u30e3\u30f3\u30bb\u30eb\u3092\u6291\u6b62<\/strong>\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>dialog.addEventListener('cancel', (event) =&gt; {\n  event.preventDefault(); \/\/ ESC\u30ad\u30fc\u3082\u7121\u52b9\u5316\u3055\u308c\u308b\n});<\/code><\/pre>\n\n\n\n<p>\u3053\u306e\u3068\u304d\u3001\u5916\u5074\u30af\u30ea\u30c3\u30af\u3082ESC\u30ad\u30fc\u3082<strong>\u52b9\u304b\u306a\u304f\u306a\u308b<\/strong>\u306e\u3067\u3001<br><strong>\u660e\u793a\u7684\u306b\u300c\u9589\u3058\u308b\u300d\u30dc\u30bf\u30f3\u3084\u51e6\u7406\u3092\u7528\u610f\u3059\u308b\u3053\u3068\u304c\u5fc5\u9808<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><code>cancel<\/code> \u30a4\u30d9\u30f3\u30c8\u3068\u306f\uff1f<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30e2\u30fc\u30c0\u30eb\u3092 <strong>ESC\u30ad\u30fc\u3067\u9589\u3058\u3088\u3046\u3068\u3057\u305f\u3068\u304d<\/strong>\u306b\u767a\u706b\u3057\u307e\u3059<\/li>\n\n\n\n<li><code>preventDefault()<\/code> \u3092\u4f7f\u3046\u3068\u9589\u3058\u52d5\u4f5c\u3092\u30ad\u30e3\u30f3\u30bb\u30eb\u3067\u304d\u307e\u3059<\/li>\n\n\n\n<li>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3068\u4f75\u305b\u3066\u5236\u5fa1\u3057\u305f\u3044\u3068\u304d\u306b\u3082\u5229\u7528\u3055\u308c\u307e\u3059<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u3088\u304f\u3042\u308b\u8aa4\u89e3\uff1a\u300c\u30af\u30ea\u30c3\u30af\u30a4\u30d9\u30f3\u30c8\u3067\u5916\u3092\u5224\u5b9a\u3057\u306a\u3044\u3068\u30c0\u30e1\uff1f\u300d<\/h3>\n\n\n\n<p>\u65e7\u6765\u306e\u30ab\u30b9\u30bf\u30e0\u30e2\u30fc\u30c0\u30eb\uff08<code>div.modal<\/code> + JS\uff09\u3067\u306f\u3001\u80cc\u666f\u3092 <code>addEventListener('click', ...)<\/code> \u3067\u76e3\u8996\u3057\u3066\u3001<br>\u300c\u30af\u30ea\u30c3\u30af\u5bfe\u8c61\u304c <code>.modal-content<\/code> \u3067\u306a\u3051\u308c\u3070\u9589\u3058\u308b\u300d\u307f\u305f\u3044\u306a\u30ed\u30b8\u30c3\u30af\u3092\u81ea\u524d\u3067\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u3067\u3059\u304c\u3001<strong><code>&lt;dialog&gt;<\/code> \u3092\u4f7f\u3048\u3070\u305d\u306e\u5fc5\u8981\u306f\u4e00\u5207\u3042\u308a\u307e\u305b\u3093\u3002<\/strong><br>\u958b\u304f\u30fb\u9589\u3058\u308b\u306e\u57fa\u672c\u52d5\u4f5c\u306f <strong>\u6a19\u6e96\u5b9f\u88c5\u3067\u30ab\u30d0\u30fc\u3055\u308c\u3066\u3044\u308b<\/strong>\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u3068\u3057\u3066 <code>details + summary<\/code> \u3092\u4f7f\u3046\u5834\u5408\u306e\u6319\u52d5<\/h3>\n\n\n\n<p>\u4e00\u90e8\u306e\u30ec\u30ac\u30b7\u30fc\u74b0\u5883\u3084JS\u30ec\u30b9\u74b0\u5883\u3067\u306f\u3001<br><code>&lt;dialog&gt;<\/code> \u304c\u4f7f\u3048\u306a\u3044\u30b1\u30fc\u30b9\u306b\u5099\u3048\u3066\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u4ee3\u66ff\u30d1\u30bf\u30fc\u30f3\u3082\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;details&gt;\n  &lt;summary&gt;\u958b\u304f&lt;\/summary&gt;\n  &lt;div class=\"modal\"&gt;\u30e2\u30fc\u30c0\u30eb\u306e\u4e2d\u8eab&lt;\/div&gt;\n&lt;\/details&gt;<\/code><\/pre>\n\n\n\n<p>\u305f\u3060\u3057\u3053\u308c\u306f\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3067\u9589\u3058\u3089\u308c\u306a\u3044<\/li>\n\n\n\n<li>ESC\u30ad\u30fc\u3067\u9589\u3058\u3089\u308c\u306a\u3044<\/li>\n\n\n\n<li>\u30d5\u30a9\u30fc\u30ab\u30b9\u3082\u9589\u3058\u8fbc\u3081\u3089\u308c\u306a\u3044<\/li>\n<\/ul>\n\n\n\n<p>\u3068\u3044\u3063\u305f\u5236\u7d04\u304c\u3042\u308b\u305f\u3081\u3001<strong>\u3042\u304f\u307e\u3067\u7c21\u6613UI\u3084\u9759\u7684\u30da\u30fc\u30b8\u5411\u3051<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u3001<strong>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3084ESC\u5bfe\u5fdc\u304c\u201c\u6a19\u6e96\u52d5\u4f5c\u201d\u3068\u3057\u3066\u5099\u308f\u3063\u3066\u3044\u308b<\/strong>\u306e\u304c\u3001<code>&lt;dialog&gt;<\/code> \u6700\u5927\u306e\u9b45\u529b\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306f\u3001<strong>\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7\u3084ARIA\u5c5e\u6027\u3092\u542b\u3081\u305f\u3001\u30a2\u30af\u30bb\u30b7\u30d6\u30eb\u306a\u30e2\u30fc\u30c0\u30eb\u8a2d\u8a08\u306e\u30dd\u30a4\u30f3\u30c8<\/strong>\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u30ad\u30fc\u30dc\u30fc\u30c9\u30d5\u30a9\u30fc\u30ab\u30b9\u5236\u5fa1\u3068\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5bfe\u5fdc<\/h2>\n\n\n\n<p>\u30e2\u30fc\u30c0\u30eb\u306eUI\u306f\u3001\u898b\u305f\u76ee\u3060\u3051\u3067\u306a\u304f<strong>\u300c\u64cd\u4f5c\u4e2d\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u4eca\u3069\u3053\u306b\u3044\u308b\u304b\u300d\u3092\u660e\u78ba\u306b\u3059\u308b\u3053\u3068<\/strong>\u304c\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<br>\u7279\u306b\u30ad\u30fc\u30dc\u30fc\u30c9\u64cd\u4f5c\u3084\u30b9\u30af\u30ea\u30fc\u30f3\u30ea\u30fc\u30c0\u30fc\u5229\u7528\u8005\u306b\u3068\u3063\u3066\u306f\u3001<strong>\u30d5\u30a9\u30fc\u30ab\u30b9\u306e\u7ba1\u7406\u3068\u9069\u5207\u306aARIA\u5c5e\u6027\u306e\u8a2d\u8a08<\/strong>\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n\n\n\n<p><code>&lt;dialog&gt;<\/code> \u8981\u7d20\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u3053\u3046\u3057\u305f\u8981\u4ef6\u306e\u591a\u304f\u3092<strong>\u6a19\u6e96\u3067\u30ab\u30d0\u30fc<\/strong>\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u81ea\u52d5\u3067\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7\u3055\u308c\u308b<\/h3>\n\n\n\n<p><code>&lt;dialog&gt;<\/code> \u3092 <code>.showModal()<\/code> \u3067\u958b\u304f\u3068\u3001\u958b\u3044\u305f\u6642\u70b9\u3067<strong>\u30d5\u30a9\u30fc\u30ab\u30b9\u304c\u30e2\u30fc\u30c0\u30eb\u5185\u306e\u6700\u521d\u306e\u30d5\u30a9\u30fc\u30ab\u30b9\u53ef\u80fd\u8981\u7d20<\/strong>\u306b\u81ea\u52d5\u3067\u79fb\u52d5\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3055\u3089\u306b\u3001\u305d\u306e\u72b6\u614b\u3067\u306f<strong>Tab\u30ad\u30fc\u3067\u306e\u79fb\u52d5\u3082\u30e2\u30fc\u30c0\u30eb\u5185\u306b\u9650\u5b9a\u3055\u308c\u308b<\/strong>\uff08\u3044\u308f\u3086\u308b\u300c\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7\u300d\uff09\u305f\u3081\u3001<br>\u30e6\u30fc\u30b6\u30fc\u304c\u30e2\u30fc\u30c0\u30eb\u5916\u306b\u30d5\u30a9\u30fc\u30ab\u30b9\u3092\u79fb\u3057\u3066\u3057\u307e\u3046\u5fc3\u914d\u3082\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">\u88dc\u8db3\uff1a\u660e\u793a\u7684\u306b\u79fb\u52d5\u5148\u3092\u6307\u5b9a\u3057\u305f\u3044\u5834\u5408<\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>dialog.addEventListener('shown', () =&gt; {\n  dialog.querySelector('input')?.focus();\n});<\/code><\/pre>\n\n\n\n<p>\u203b <code>shown<\/code> \u30a4\u30d9\u30f3\u30c8\u306f\u672a\u6a19\u6e96\u306a\u306e\u3067\u3001\u4ee3\u308f\u308a\u306b <code>DOMContentLoaded<\/code> \u3084\u30ab\u30b9\u30bf\u30e0\u51e6\u7406\u3067\u4ee3\u66ff\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\"><code>&lt;dialog&gt;<\/code> \u306b\u5fc5\u8981\u306aARIA\u5c5e\u6027\u306f\uff1f<\/h3>\n\n\n\n<p>\u57fa\u672c\u7684\u306b\u306f\u4e0d\u8981\u3067\u3059\u3002\u30e2\u30c0\u30f3\u30d6\u30e9\u30a6\u30b6\u306f\u3001<code>&lt;dialog&gt;<\/code> \u306b\u5bfe\u3057\u3066\u81ea\u52d5\u7684\u306b\u4ee5\u4e0b\u3092\u4ed8\u4e0e\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>role=\"dialog\"<\/code><\/li>\n\n\n\n<li><code>aria-modal=\"true\"<\/code><\/li>\n<\/ul>\n\n\n\n<p>\u3068\u306f\u3044\u3048\u3001<strong>\u88dc\u8db3\u7684\u306b\u4ee5\u4e0b\u3092\u4ed8\u3051\u3066\u304a\u304f\u3068\u3001\u3088\u308a\u78ba\u5b9f\u306b\u30a2\u30af\u30bb\u30b7\u30d6\u30eb<\/strong>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;dialog aria-labelledby=\"dialog-title\" aria-describedby=\"dialog-desc\"&gt;\n  &lt;h2 id=\"dialog-title\"&gt;\u304a\u77e5\u3089\u305b&lt;\/h2&gt;\n  &lt;p id=\"dialog-desc\"&gt;\u3053\u306e\u64cd\u4f5c\u3092\u5b8c\u4e86\u3059\u308b\u306b\u306f\u2026&lt;\/p&gt;\n  ...\n&lt;\/dialog&gt;<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>aria-labelledby<\/code>\uff1a\u30e2\u30fc\u30c0\u30eb\u306e\u300c\u30bf\u30a4\u30c8\u30eb\u300d\u3068\u8a8d\u8b58\u3055\u308c\u308b\u8981\u7d20\u3092\u6307\u5b9a<\/li>\n\n\n\n<li><code>aria-describedby<\/code>\uff1a\u88dc\u8db3\u8aac\u660e\u3068\u3057\u3066\u8aad\u307f\u4e0a\u3052\u3055\u305b\u308b\u8981\u7d20<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">JS\u30ab\u30b9\u30bf\u30e0\u30e2\u30fc\u30c0\u30eb\u3067\u5fd8\u308c\u3089\u308c\u304c\u3061\u306a\u3053\u3068<\/h3>\n\n\n\n<p>\u624b\u52d5\u3067\u30e2\u30fc\u30c0\u30eb\u3092\u5b9f\u88c5\u3059\u308b\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u3053\u3068\u3092<strong>\u81ea\u524d\u3067\u5236\u5fa1\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044<\/strong>\u305f\u3081\u3001<br>\u5b9f\u306f\u975e\u5e38\u306b\u624b\u9593\u304c\u304b\u304b\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u8981\u4ef6<\/th><th><code>&lt;dialog&gt;<\/code><\/th><th>\u30ab\u30b9\u30bf\u30e0\u5b9f\u88c5<\/th><\/tr><\/thead><tbody><tr><td>\u521d\u671f\u30d5\u30a9\u30fc\u30ab\u30b9\u79fb\u52d5<\/td><td>\u2705 \u81ea\u52d5<\/td><td>\u274c \u8981\u81ea\u4f5c<\/td><\/tr><tr><td>\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7<\/td><td>\u2705 \u81ea\u52d5<\/td><td>\u274c \u8981\u30eb\u30fc\u30d7\u51e6\u7406<\/td><\/tr><tr><td>role\/aria\u5c5e\u6027<\/td><td>\u2705 \u81ea\u52d5 or \u88dc\u52a9\u306e\u307f<\/td><td>\u274c \u660e\u793a\u6307\u5b9a\u304c\u5fc5\u9808<\/td><\/tr><tr><td>ESC\u30ad\u30fc\u3067\u9589\u3058\u308b<\/td><td>\u2705 \u81ea\u52d5<\/td><td>\u274c \u8981\u30a4\u30d9\u30f3\u30c8\u51e6\u7406<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u52d9\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1<\/h3>\n\n\n\n<p>\u300c\u30a2\u30af\u30bb\u30b7\u30d6\u30eb\u306a\u30e2\u30fc\u30c0\u30eb\u3092\u7c21\u5358\u306b\u5b9f\u88c5\u3057\u305f\u3044\u300d\u3068\u304d\u306f\u3001<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u307e\u305a <code>&lt;dialog&gt;<\/code> \u3067\u69cb\u7bc9<\/li>\n\n\n\n<li>\u5fc5\u8981\u306b\u5fdc\u3058\u3066 <code>aria-labelledby<\/code> \u3092\u8ffd\u52a0<\/li>\n\n\n\n<li>\u30d5\u30a9\u30fc\u30ab\u30b9\u79fb\u52d5\u3084ESC\u7121\u52b9\u5316\u306a\u3069\u3092 JavaScript \u3067\u88dc\u5f37<\/li>\n<\/ul>\n\n\n\n<p>\u3068\u3044\u3046\u6d41\u308c\u304c<strong>\u6700\u5c0f\u30b3\u30b9\u30c8\u3067\u6700\u5927\u306e\u54c1\u8cea\u3092\u51fa\u3059\u65b9\u6cd5<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u6b21\u7ae0\u3067\u306f\u3001<code>&lt;dialog&gt;<\/code> \u3092\u4f7f\u308f\u305a\u306b<strong>CSS\u3060\u3051 or JS\u6700\u5c0f\u9650\u3067\u5b9f\u88c5\u3059\u308b\u4ee3\u66ff\u30d1\u30bf\u30fc\u30f3<\/strong>\u306b\u3064\u3044\u3066\u3001\u73fe\u5b9f\u7684\u306a\u9078\u629e\u80a2\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">JS\u30ec\u30b9\u307e\u305f\u306f\u9650\u308a\u306a\u304fJS\u3092\u6e1b\u3089\u3059\u65b9\u6cd5\uff08\u4ee3\u66ff\u624b\u6bb5\uff09<\/h2>\n\n\n\n<p>\u300c\u3067\u304d\u308b\u3060\u3051JavaScript\u3092\u4f7f\u3044\u305f\u304f\u306a\u3044\u300d\u300c\u5b8c\u5168\u306a\u9759\u7684\u30b5\u30a4\u30c8\u3067\u52d5\u304b\u3057\u305f\u3044\u300d<br>\u305d\u3093\u306a\u5834\u9762\u3067\u3082\u3001<strong>\u30e2\u30fc\u30c0\u30eb\u3063\u307d\u3044UI\u3092CSS\u3060\u3051\u3067\u3042\u308b\u7a0b\u5ea6\u518d\u73fe\u3059\u308b\u65b9\u6cd5<\/strong>\u306f\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u3053\u3067\u306f\u3001\u5b9f\u52d9\u3067\u3082\u305f\u307e\u306b\u5f79\u7acb\u3064\u3001<strong>JS\u6700\u5c0f\u9650 or JS\u30ec\u30b9\u306e\u30e2\u30fc\u30c0\u30eb\u4ee3\u66ff\u624b\u6bb5<\/strong>\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<br>\u305f\u3060\u3057\u5236\u7d04\u3082\u3042\u308b\u305f\u3081\u3001\u300c\u4f55\u304c\u3067\u304d\u3066\u3001\u4f55\u304c\u3067\u304d\u306a\u3044\u304b\u300d\u3082\u4f75\u305b\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udd70 <code>details<\/code> + <code>summary<\/code> \u3092\u4f7f\u3063\u305f\u201c\u6298\u308a\u305f\u305f\u307f\u578b\u30e2\u30fc\u30c0\u30eb\u201d<\/h3>\n\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_ByNQvqa\" src=\"\/\/codepen.io\/anon\/embed\/ByNQvqa?height=450&amp;theme-id=1&amp;slug-hash=ByNQvqa&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed ByNQvqa\" title=\"CodePen Embed ByNQvqa\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">\u2705 \u7279\u5fb4<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u958b\u9589\u304c <strong>\u5b8c\u5168\u306bHTML\uff0bCSS\u3060\u3051<\/strong>\u3067\u5b8c\u7d50<\/li>\n\n\n\n<li><code>open<\/code> \u5c5e\u6027\u304c\u4ed8\u4e0e\u3055\u308c\u3001\u30b9\u30bf\u30a4\u30eb\u5207\u308a\u66ff\u3048\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u274c \u6ce8\u610f\u70b9<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3067\u306f\u9589\u3058\u3089\u308c\u306a\u3044<\/li>\n\n\n\n<li>ESC\u30ad\u30fc\u306f\u52b9\u304b\u306a\u3044<\/li>\n\n\n\n<li><strong>\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7\u304c\u306a\u3044<\/strong><\/li>\n\n\n\n<li>\u30b9\u30af\u30ea\u30fc\u30f3\u30ea\u30fc\u30c0\u30fc\u5bfe\u5fdc\u306f\u9650\u5b9a\u7684<\/li>\n<\/ul>\n\n\n\n<p>\u3053\u308c\u306f\u3042\u304f\u307e\u3067\u3001<strong>\u8efd\u91cf\u306a\u30c8\u30b0\u30ebUI\u3084\u201c\u306a\u3093\u3061\u3083\u3063\u3066\u30e2\u30fc\u30c0\u30eb\u201d\u3068\u3057\u3066\u9650\u5b9a\u5229\u7528<\/strong>\u3059\u308b\u306e\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\ud83c\udd71 <code>:target<\/code> \u64ec\u4f3c\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u305f\u30a2\u30f3\u30ab\u30fc\u9077\u79fb\u578b\u30e2\u30fc\u30c0\u30eb<\/h3>\n\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_azOBXPr\" src=\"\/\/codepen.io\/anon\/embed\/azOBXPr?height=450&amp;theme-id=1&amp;slug-hash=azOBXPr&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed azOBXPr\" title=\"CodePen Embed azOBXPr\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">\u2705 \u7279\u5fb4<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>JavaScript\u5b8c\u5168\u4e0d\u8981<\/li>\n\n\n\n<li>\u64ec\u4f3c\u7684\u306a\u8868\u793a\uff0f\u975e\u8868\u793a\u5207\u308a\u66ff\u3048\u304c\u53ef\u80fd<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\u274c \u6ce8\u610f\u70b9<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li>URL\u306e <code>#\u30cf\u30c3\u30b7\u30e5<\/code> \u3092\u66f8\u304d\u63db\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b<\/li>\n\n\n\n<li>\u8907\u6570\u30e2\u30fc\u30c0\u30eb\u306e\u7ba1\u7406\u304c\u96e3\u3057\u3044<\/li>\n\n\n\n<li>ESC\u30ad\u30fc\u30fb\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7\u975e\u5bfe\u5fdc<\/li>\n\n\n\n<li>\u9589\u3058\u308b\u305f\u3081\u306e <code>a href=\"#close\"<\/code> \u3068\u3044\u3046<strong>\u3084\u3084\u5f37\u5f15\u306a\u65b9\u6cd5<\/strong>\u304c\u5fc5\u8981<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u3069\u3093\u306a\u5834\u9762\u3067\u4f7f\u3048\u308b\u304b\uff1f<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u65b9\u6cd5<\/th><th>\u9069\u3057\u3066\u3044\u308b\u30b1\u30fc\u30b9<\/th><\/tr><\/thead><tbody><tr><td><code>details + summary<\/code><\/td><td>\u9759\u7684\u306aFAQ\u3001\u8efd\u91cf\u306a\u8aac\u660e\u6587\u30dd\u30c3\u30d7\u30a2\u30c3\u30d7\u306a\u3069<\/td><\/tr><tr><td><code>:target<\/code><\/td><td>1\u30da\u30fc\u30b8\u5b8c\u7d50\u306e\u30ad\u30e3\u30f3\u30da\u30fc\u30f3LP\u3001\u5b8c\u5168\u9759\u7684\u306a\u6848\u5185\u30da\u30fc\u30b8\u306a\u3069<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u52d9\u3067\u306e\u7d50\u8ad6<\/h3>\n\n\n\n<p>\u300c\u30e2\u30fc\u30c0\u30eb\u3068\u3057\u3066\u306e\u3075\u308b\u307e\u3044\uff08\u9589\u3058\u308b\u3001\u30d5\u30a9\u30fc\u30ab\u30b9\u3001\u30ad\u30fc\u30dc\u30fc\u30c9\u5bfe\u5fdc\uff09\u3092\u6c42\u3081\u308b\u300d\u5834\u5408\u306f\u3001<br><strong>\u3084\u306f\u308a <code>&lt;dialog&gt;<\/code> \u3092\u4f7f\u3046\u306e\u304c\u6700\u3082\u5b89\u5168\u304b\u3064\u5b9f\u88c5\u30b3\u30b9\u30c8\u3082\u4f4e\u3044\u9078\u629e\u80a2<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u3067\u3082\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306b\u3088\u3063\u3066\u306f\u300cJS\u3092\u4f7f\u3048\u306a\u3044\u300d\u300c\u30d3\u30eb\u30c9\u4e0d\u8981\u3067\u5b8c\u7d50\u3057\u305f\u3044\u300d\u306a\u3069\u306e\u8981\u4ef6\u3082\u3042\u308b\u305f\u3081\u3001<br>\u3053\u308c\u3089\u306eCSS\u30d9\u30fc\u30b9\u306e\u624b\u6cd5\u3082<strong>\u77e5\u3063\u3066\u304a\u304f\u3068\u5f79\u7acb\u3064\u5834\u9762\u306f\u3042\u308a\u307e\u3059<\/strong>\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u6b21\u7ae0\u3067\u306f\u3001<code>&lt;dialog&gt;<\/code> \u3092\u4f7f\u3063\u305f<strong>\u5b9f\u8df5\u7684\u306a\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/strong>\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<br>\u30e2\u30fc\u30c0\u30eb\u306e\u958b\u9589\u3001\u30b9\u30bf\u30a4\u30eb\u3001\u5916\u5074\u30af\u30ea\u30c3\u30af\u5bfe\u5fdc\u3001\u3059\u3079\u3066\u542b\u3093\u3060\u73fe\u5834\u5411\u3051\u306e\u69cb\u6210\u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\uff1a<code>&lt;dialog&gt;<\/code>\u30d9\u30fc\u30b9\uff0bESC\uff06\u5916\u5074\u30af\u30ea\u30c3\u30af\u5bfe\u5fdc<\/h2>\n\n\n\n<p>\u3053\u3053\u307e\u3067\u7d39\u4ecb\u3057\u3066\u304d\u305f <code>&lt;dialog&gt;<\/code> \u8981\u7d20\u306f\u3001<strong>\u6a19\u6e96\u306eHTML\u30bf\u30b0\uff0b\u6700\u5c0f\u9650\u306eJavaScript\u3067\u3001\u5b9f\u7528\u7684\u306a\u30e2\u30fc\u30c0\u30eb\u3092\u69cb\u7bc9\u3067\u304d\u308b\u512a\u79c0\u306a\u9078\u629e\u80a2<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u306f\u3001\u4ee5\u4e0b\u306e\u8981\u7d20\u3092\u3059\u3079\u3066\u542b\u3093\u3060\u5b9f\u88c5\u4f8b\u3092\u7d39\u4ecb\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>&lt;dialog&gt;<\/code> \u3092\u4f7f\u3063\u305f\u30e2\u30fc\u30c0\u30eb\u69cb\u9020<\/li>\n\n\n\n<li>\u958b\u304f\uff0f\u9589\u3058\u308b\u30dc\u30bf\u30f3<\/li>\n\n\n\n<li>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3001ESC\u30ad\u30fc\u3067\u306e\u81ea\u52d5\u9589\u3058<\/li>\n\n\n\n<li>\u30b9\u30bf\u30a4\u30ea\u30f3\u30b0\u3055\u308c\u305f\u80cc\u666f\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3068\u5185\u5bb9\u914d\u7f6e<\/li>\n\n\n\n<li>\u5fc5\u8981\u6700\u4f4e\u9650\u306e\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5bfe\u5fdc<\/li>\n<\/ul>\n\n\n\n<div class=\"wp-block-cp-codepen-gutenberg-embed-block cp_embed_wrapper\"><iframe id=\"cp_embed_YPXpgzG\" src=\"\/\/codepen.io\/anon\/embed\/YPXpgzG?height=450&amp;theme-id=1&amp;slug-hash=YPXpgzG&amp;default-tab=result\" height=\"450\" scrolling=\"no\" frameborder=\"0\" allowfullscreen allowpaymentrequest name=\"CodePen Embed YPXpgzG\" title=\"CodePen Embed YPXpgzG\" class=\"cp_embed_iframe\" style=\"width:100%;overflow:hidden\">CodePen Embed Fallback<\/iframe><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>dialog::backdrop<\/code> \u306b\u3088\u308a\u3001<strong>\u81ea\u52d5\u751f\u6210\u3055\u308c\u308b\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u80cc\u666f<\/strong>\u306b\u534a\u900f\u660e\u306e\u9ed2\u3092\u8a2d\u5b9a<\/li>\n\n\n\n<li><code>width: min(90vw, 500px)<\/code> \u3067\u3001\u30e2\u30d0\u30a4\u30eb\u3067\u3082\u7834\u7dbb\u3057\u306a\u3044\u4e2d\u592e\u914d\u7f6e\u3092\u5b9f\u73fe<\/li>\n<\/ul>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u3053\u306e\u5b9f\u88c5\u306e\u30dd\u30a4\u30f3\u30c8\u307e\u3068\u3081<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u6a5f\u80fd<\/th><th>\u5bfe\u5fdc<\/th><th>\u8aac\u660e<\/th><\/tr><\/thead><tbody><tr><td>\u30e2\u30fc\u30c0\u30eb\u8868\u793a<\/td><td>\u2705<\/td><td><code>.showModal()<\/code> \u3067\u8868\u793a<\/td><\/tr><tr><td>\u30e2\u30fc\u30c0\u30eb\u975e\u8868\u793a<\/td><td>\u2705<\/td><td><code>&lt;button&gt;<\/code> + <code>form method=\"dialog\"<\/code><\/td><\/tr><tr><td>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3067\u9589\u3058\u308b<\/td><td>\u2705<\/td><td><code>&lt;dialog&gt;<\/code> \u6a19\u6e96\u52d5\u4f5c<\/td><\/tr><tr><td>ESC\u30ad\u30fc\u3067\u9589\u3058\u308b<\/td><td>\u2705<\/td><td>\u81ea\u52d5\u5bfe\u5fdc<\/td><\/tr><tr><td>\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7<\/td><td>\u2705<\/td><td>\u81ea\u52d5\u5bfe\u5fdc<\/td><\/tr><tr><td>ARIA\u5c5e\u6027<\/td><td>\u2b55<\/td><td>\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u88dc\u8db3\u7684\u306b\u8ffd\u52a0\u53ef\u80fd\uff08<code>aria-labelledby<\/code> \u306a\u3069\uff09<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u3053\u306e\u69cb\u6210\u306f\u3001<strong>\u521d\u671f\u69cb\u7bc9\u304c\u65e9\u3044\u30fb\u4fdd\u5b88\u304c\u7c21\u5358\u30fb\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u3082\u6a19\u6e96\u5bfe\u5fdc<\/strong>\u3068\u3044\u30463\u62cd\u5b50\u63c3\u3063\u305f\u3001\u73fe\u4ee3\u306e\u30e2\u30fc\u30c0\u30eb\u5b9f\u88c5\u306e\u201c\u578b\u201d\u3067\u3059\u3002<br>\u3053\u306e\u307e\u307e\u30d9\u30fc\u30b9\u306b\u3057\u3066\u3001\u5185\u5bb9\u3084\u30c7\u30b6\u30a4\u30f3\u3092\u8abf\u6574\u3057\u3066\u3044\u3051\u3070\u3001\u307b\u3068\u3093\u3069\u306e\u6848\u4ef6\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u6b21\u306f\u3001\u4eca\u56de\u306e\u5185\u5bb9\u3092\u8e0f\u307e\u3048\u305f\u30b7\u30f3\u30d7\u30eb\u306a\u307e\u3068\u3081\u3068\u3001\u30e2\u30fc\u30c0\u30ebUI\u306b\u5bfe\u3059\u308b\u8a2d\u8a08\u65b9\u91dd\u306e\u518d\u78ba\u8a8d\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:40px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u307e\u3068\u3081\uff1a\u30e2\u30fc\u30c0\u30eb\u306f\u201c\u9589\u3058\u65b9\u201d\u3067\u4fe1\u983c\u6027\u304c\u6c7a\u307e\u308b<\/h2>\n\n\n\n<p>\u30e2\u30fc\u30c0\u30eb\u3068\u3044\u3046UI\u306f\u3001<strong>\u898b\u305f\u76ee\u3088\u308a\u3082\u300c\u3069\u3046\u9589\u3058\u308b\u304b\u300d\u300c\u3069\u3046\u64cd\u4f5c\u3092\u5236\u5fa1\u3059\u308b\u304b\u300d\u304c\u672c\u8cea<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u4eca\u56de\u7d39\u4ecb\u3057\u305f <code>&lt;dialog&gt;<\/code> \u8981\u7d20\u3092\u4f7f\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u6a5f\u80fd\u304c<strong>HTML\uff0b\u6570\u884c\u306eJS\u3060\u3051\u3067\u5b9f\u73fe<\/strong>\u3067\u304d\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5916\u5074\u30af\u30ea\u30c3\u30af\u3084ESC\u30ad\u30fc\u3067\u81ea\u7136\u306b\u9589\u3058\u308b<\/li>\n\n\n\n<li>\u30ad\u30fc\u30dc\u30fc\u30c9\u64cd\u4f5c\u3092\u30e2\u30fc\u30c0\u30eb\u5185\u306b\u9650\u5b9a\uff08\u30d5\u30a9\u30fc\u30ab\u30b9\u30c8\u30e9\u30c3\u30d7\uff09<\/li>\n\n\n\n<li>\u6a19\u6e96\u3067\u30a2\u30af\u30bb\u30b7\u30d3\u30ea\u30c6\u30a3\u5bfe\u5fdc\u6e08\u307f\uff08role, aria-modal \u306a\u3069\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u7279\u5225\u306aJS\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u308f\u306a\u304f\u3066\u3082\u3001<strong>\u5341\u5206\u5b9f\u7528\u306b\u8010\u3048\u308b\u30e2\u30fc\u30c0\u30eb\u304c\u201c\u6a19\u6e96\u6280\u8853\u201d\u3067\u69cb\u7bc9\u3067\u304d\u308b\u6642\u4ee3<\/strong>\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u4e00\u65b9\u3001<code>details<\/code> \u3084 <code>:target<\/code> \u3092\u4f7f\u3063\u305fCSS\u30d9\u30fc\u30b9\u306e\u4ee3\u66ff\u624b\u6cd5\u3082\u3042\u308a\u307e\u3059\u304c\u3001<strong>\u9589\u3058\u65b9\u3084\u30d5\u30a9\u30fc\u30ab\u30b9\u7ba1\u7406\u307e\u3067\u542b\u3081\u3066\u201c\u30e2\u30fc\u30c0\u30eb\u3089\u3057\u3055\u201d\u3092\u6c42\u3081\u308b\u306a\u3089\u3001\u3084\u306f\u308a <code>&lt;dialog&gt;<\/code> \u304c\u30d9\u30b9\u30c8<\/strong>\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u8981\u4ef6\u306b\u5fdc\u3058\u3066\u300c\u3069\u3053\u307e\u3067\u4f5c\u308a\u8fbc\u3080\u304b\u300d\u3092\u9078\u3079\u308b\u3053\u3068\u304c\u3001\u4eca\u306e\u30d5\u30ed\u30f3\u30c8\u30a8\u30f3\u30c9\u306b\u6c42\u3081\u3089\u308c\u308b\u67d4\u8edf\u3055\u3060\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u6b21\u56de\u306f\u3001<strong>\u7e26\u66f8\u304d\u5bfe\u5fdc\u30c7\u30b6\u30a4\u30f3\u3092\u30ec\u30b9\u30dd\u30f3\u30b7\u30d6\u3067\u5207\u308a\u66ff\u3048\u308b\u65b9\u6cd5<\/strong>\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<br><code>writing-mode<\/code> \u3084 <code>logical properties<\/code> 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