https://takao.blog/en/tags/popover/Recent content in Popover on Commentary of TakaoHugo -- gohugo.ioenCommentary of TakaoSat, 13 Jun 2026 23:11:50 +0900https://takao.blog/en/web/css-popover-api/Tue, 20 Aug 2024 00:00:00 +0900https://takao.blog/en/web/css-popover-api/<img src="https://takao.blog/img/thumnail.webp" alt="Featured image of post CSS Popover API: Native Overlays Without JavaScript" /><h2 id="introduction">Introduction </h2><p>Building overlays like tooltips, dropdown menus, and modals has traditionally required a significant amount of JavaScript. Developers have relied on CSS <code>position: absolute</code> with manual coordinate calculations, ARIA attributes for accessibility, and framework-specific solutions such as React portals or Floating UI. The CSS Popover API changes this by providing a native, declarative way to create overlays that handle positioning, show/hide toggling, focus management, and light dismiss without any JavaScript.</p>