自定义元素让您可以在网络上创建自己的封装组件，但随之会出现许多问题。如何构建所有人都可以访问的元素？是否可使用键盘进行导航？它们在屏幕阅读器和 ARIA 上的表现如何？了解如何创建无障碍功能元素，让所有用户受益。
如未另行说明，那么本页面中的内容已根据知识共享署名 4.0 许可获得了许可，并且代码示例已根据 Apache 2.0 许可获得了许可。有关详情，请参阅 Google 开发者网站政策。Java 是 Oracle 和/或其关联公司的注册商标。
最后更新时间 (UTC)：2024-08-09。
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