web-feature: Nesting

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CSS nesting allows for shorter selectors, easier reading, and more modularity by nesting rules inside others.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-06

Servo

Android

2026-06

Chrome Browser

Android

120

Safari Browser

iOS

17.2