{"id":28204,"date":"2026-08-01T07:24:02","date_gmt":"2026-07-31T22:24:02","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=28204"},"modified":"2026-08-01T07:31:06","modified_gmt":"2026-07-31T22:31:06","slug":"anchor-positioning","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=28204","title":{"rendered":"Anchor Positioning\u3001Popover API\uff08\u30dd\u30c3\u30d7\u30aa\u30fc\u30d0\u30fcAPI\uff09"},"content":{"rendered":"\n<p>\u30c4\u30fc\u30eb\u30c1\u30c3\u30d7\u306e\u4f4d\u7f6e\u3092CSS\u3060\u3051\u3067\u5236\u5fa1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u30022024\u5e74\u304b\u3089\u4f7f\u3048\u308b\u6a5f\u80fd\u3002<\/p>\n\n\n\n<p>\u4eca\u307e\u3067\u306f\u3001popper.js\u3001floating UI\u3092\u4f7f\u3063\u3066\u3084\u308b\u3082\u306e\u3060\u3063\u305f\u3002<\/p>\n\n\n\n<p>\u898b\u5207\u308c\u3066\u3057\u307e\u3046\u5bfe\u7b56\u3068\u3057\u3066\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u4f4d\u7f6e\u3082\u5ba3\u8a00\u7684\u306b\u6307\u5b9a\u3067\u304d\u308b\u3002\uff08position-try-fallbacks\uff09<\/p>\n\n\n\n<p>\u3081\u3093\u3069\u304f\u3055\u3044\u3001\u8a08\u7b97\u304cCSS\u3060\u3051\u3067\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b5\u30f3\u30d7\u30eb<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>.button {\r\n  anchor-name: --save-btn;\r\n}\r\n\r\n.tooltip {\r\n  position: absolute;\r\n  position-anchor: --save-btn;\r\n\r\n  top: anchor(bottom);\r\n  left: anchor(left);\r\n\r\n  margin-top: 8px;\r\n  padding: 8px 12px;\r\n  background: black;\r\n  color: white;\r\n  border-radius: 4px;\r\n}<\/code><\/pre>\n\n\n\n<p>\u3053\u308c\u306a\u3089\u30dc\u30bf\u30f3\u306e\u4e0b\u306b\u30c4\u30fc\u30eb\u30c1\u30c3\u30d7\u304c\u8868\u793a\u3055\u308c\u308b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Popover API\uff08\u30dd\u30c3\u30d7\u30aa\u30fc\u30d0\u30fcAPI\uff09<\/h2>\n\n\n\n<p>2023\u5e74\u304b\u3089\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u958b\u9589\u306e\u305f\u3081\u306eAPI\u30022024\u5e74\u306b\u8272\u3093\u306a\u30d6\u30e9\u30a6\u30b6\u3067\u4f7f\u3048\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u305f\u3002<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"\u30c4\u30fc\u30eb\u30c1\u30c3\u30d7\u306e\u4f4d\u7f6e\u3092CSS\u3060\u3051\u3067\u5236\u5fa1\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u30022024\u5e74\u304b\u3089\u4f7f\u3048\u308b\u6a5f\u80fd\u3002 \u4eca\u307e\u3067\u306f\u3001popper.js\u3001floating UI\u3092\u4f7f\u3063\u3066\u3084\u308b\u3082\u306e\u3060\u3063\u305f\u3002 \u898b\u5207\u308c\u3066\u3057\u307e\u3046\u5bfe\u7b56\u3068\u3057\u3066\u3001\u30d5\u30a9\u30fc\u30eb\u30d0\u30c3\u30af\u4f4d\u7f6e\u3082\u5ba3\u8a00\u7684\u306b\u6307\u5b9a [&hellip;]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/28204"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=28204"}],"version-history":[{"count":7,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/28204\/revisions"}],"predecessor-version":[{"id":28215,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/28204\/revisions\/28215"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=28204"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=28204"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=28204"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}