web-feature: ::placeholder

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The ::placeholder CSS pseudo-element selects help text in <input> and <textarea> elements when no value is set.

WKWebView

macOS

*

iOS

*

Android WebView

Android

*

WebView2

Windows

*

WPE MiniBrowser

Linux

2026-06

Servo

Android

2026-06

Chrome Browser

Android

57

Safari Browser

iOS

10.3