::part()
Quick Summary for ::part
The ::part CSS pseudo-element represents any element within a shadow tree that has a matching part attribute.
Code Usage for ::part
custom-element::part(foo) {   /* Styles to apply to the `foo` part */ } 
More Details for ::part

::part()

The ::part CSS pseudo-element represents any element within a shadow tree that has a matching part attribute.

custom-element::part(foo) {   /* Styles to apply to the `foo` part */ } 

Syntax

::part( <ident>+ )

Examples

HTML

<template id="tabbed-custom-element"> <style type="text/css"> *, ::before, ::after {   box-sizing: border-box;   padding: 1rem; } :host {   display: flex; } </style> <div part="tab active">Tab 1</div> <div part="tab">Tab 2</div> <div part="tab">Tab 3</div> </template>  <tabbed-custom-element></tabbed-custom-element> 

CSS

tabbed-custom-element::part(tab) {   color: #0c0dcc;   border-bottom: transparent solid 2px; }  tabbed-custom-element::part(tab):hover {   background-color: #0c0d19;   border-color: #0c0d33; }  tabbed-custom-element::part(tab):hover:active {   background-color: #0c0d33; }  tabbed-custom-element::part(tab):focus {   box-shadow:     0 0 0 1px #0a84ff inset,     0 0 0 1px #0a84ff,     0 0 0 4px rgba(10, 132, 255, 0.3); }  tabbed-custom-element::part(active) {   color: #0060df;   border-color: #0a84ff !important; } 

JavaScript

let template = document.querySelector("#tabbed-custom-element"); globalThis.customElements.define(template.id, class extends HTMLElement {   constructor() {     super();     this.attachShadow({ mode: "open" });     this.shadowRoot.appendChild(template.content);   } }); 

Result

Specifications

Specification
CSS Shadow Parts # part

See also

The part attribute - Used to define parts which can be selected by the ::part() selector The exportparts attribute - Used to transitively export shadow parts from a nested shadow tree into a containing light tree. Explainer: CSS Shadow ::part and ::theme

Last modified: Aug 12, 2021, by MDN contributors

Select your preferred language English (US)Français日本語中文 (简体) Change language

No Items Found.

Add Comment
Type in a Nick Name here
 
Other Categories in CSS
css
Search CSS
Search CSS by entering your search text above.
Welcome

This is my test area for webdev. I keep a collection of code here, mostly for my reference. Also if i find a good link, i usually add it here and then forget about it. more...

Subscribe to weekly updates about things i have added to the site or thought interesting during the last week.

You could also follow me on twitter or not... does anyone even use twitter anymore?

If you found something useful or like my work, you can buy me a coffee here. Mmm Coffee. ☕

❤️👩‍💻🎮

🪦 2000 - 16 Oct 2022 - Boots
Random Quote
You want to be the best, you MUST put the long yards in! Nothing comes easy in life so stop wishing and start DOING! So many people would rather bitch and moan than help themselves. Dont be one of those negative drainers, start today, make a small change and keep going forwards with this attitude!
Unknown
Random CSS Property

:future

The :future CSS pseudo-class selector is a time-dimensional pseudo-class that will match for any element which appears entirely after an element that matches :current. For example in a video with captions which are being displayed by WebVTT.
:future css reference