web-feature: :target-within

The :target-within CSS pseudo-class matches the element with an ID matching the URL fragment and its ancestors.

WKWebView

macOS

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iOS

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Android WebView

Android

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WebView2

Windows

*

WPE MiniBrowser

Linux

2026-07

Servo

Android

2026-07

ArkWeb

HarmonyOS

*

Chrome Browser

Android

*

Safari Browser

iOS

*