Resources for Developers,
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Documenting web technologies, including CSS, HTML, and JavaScript, since 2005.
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CSS anchor positioning
The CSS anchor positioning module defines features that allow you to tether elements together. Certain elements are defined as anchor elements; anchor-positioned elements can then have their size and position set based on the size and location of the anchor elements to which they are bound.
使用视图过渡 API
本文介绍了视图过渡 API 的工作原理，如何创建视图过渡，如何自定义过渡动画，以及如何操作活动状态的视图过渡。这涵盖了单页应用程序（SPA）中 DOM 状态更新的视图过渡，以及在多页应用程序（MPA）中的文档之间的导航。
Temporal
The Temporal object enables date and time management in various scenarios, including built-in time zone and calendar representation, wall-clock time conversions, arithmetics, formatting, and more. It is designed as a full replacement for the Date object.
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