part

The part global attribute contains a space-separated list of the part names of the element. Part names allows CSS to select and style specific elements in a shadow tree via the ::part pseudo-element.

See our Shadow part example for a usage example.

Specifications

Specification Status Comment
Shadow Parts
The definition of 'part' in that specification.
Working Draft

Browser compatibility

DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
part
Experimental
Chrome Full support 73Edge Full support 79Firefox Full support 72
Full support 72
No support 69 — 72
Disabled
Disabled From version 69 until version 72 (exclusive): this feature is behind the layout.css.shadow-parts.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera Full support 60Safari Full support 13.1WebView Android Full support 73Chrome Android Full support 73Firefox Android No support NoOpera Android ? Safari iOS Full support 13.4Samsung Internet Android No support No

Legend

Full support
Full support
No support
No support
Compatibility unknown
Compatibility unknown
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
User must explicitly enable this feature.
User must explicitly enable this feature.

See also