CSS shadow parts
The CSS shadow parts module defines the ::part() pseudo-element that can be set on a shadow host. Using this pseudo-element, you can enable shadow hosts to expose the selected element in the shadow tree to the outside page for styling purposes.
By default, elements in a shadow tree can be styled only within their respective shadow roots. The CSS shadow parts module enables including a part attribute on descendants that make up the custom element, exposing the shadow tree node to external styling via the ::part() pseudo-element.
Reference
Selectors
HTML attributes
Definitions
Guides
- CSS pseudo-elements
-
Alphabetical list of pseudo-elements defined by all the CSS specifications and WebVTT
- Web components
-
Overview of the different APIs that enable creating reusable custom elements or web components.
Related concepts
- HTML
element - HTML
Element.partpropertyElement.shadowRootpropertyElement.attachShadow()methodShadowRootinterface- CSS scoping module
Specifications
| Specification |
|---|
| CSS Shadow Parts |
See also
- CSS pseudo elements module
- CSS selectors module
- Using shadow DOM
- Templates: Styling outside of the current scope on web.dev (2023)