CSS Variables

HTML

<h1>Hello</h1>

CSS

body {
    --key-color: #FFF;
}

h1 {
    color: var(--key-color);
    border-bottom: 1px solid var(--key-color);
}

JavaScript

var body = document.body;
var bodyStyles = window.getComputedStyle(body, null);
// console.log(bodyStyles.getPropertyValue('--key-color'));
/*body.style.setProperty('--key-color','');*/

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CSS Variables

HTML

CSS

JavaScript

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Join the 4+ million users, and keep the JSFiddle dream alive.

Ad-free

Use pre-released features

Fiddle collections

Private collections and fiddles

Console