web-feature: Custom highlights

baseline logo Widely available

Custom highlights style arbitrary text ranges, without adding extra elements to the DOM.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-10

Servo

Android

2026-10

ArkWeb

HarmonyOS

*

Chrome Browser

Android

105

Safari Browser

iOS

17.2