|  | <!doctype html> | 
|  | <meta charset="utf-8"> | 
|  | <title>CSS Pseudo-Elements Test: highlight styling: custom properties are applicable properties in highlight pseudos</title> | 
|  | <link rel="author" title="Delan Azabani" href="mailto:dazabani@igalia.com"> | 
|  | <link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#highlight-styling"> | 
|  | <link rel="match" href="highlight-styling-001-ref.html"> | 
|  | <meta name="assert" value="This test verifies that ::selection styles can set custom properties and they over-ride the originating element."> | 
|  | <script src="support/selections.js"></script> | 
|  | <link rel="stylesheet" href="support/highlights.css"> | 
|  | <style> | 
|  | main { | 
|  | --x: red; | 
|  | font-size: 7em; | 
|  | margin: 0.5em; | 
|  | } | 
|  | main::selection { | 
|  | --x: green; | 
|  | color: white; | 
|  | background-color: var(--x, blue); | 
|  | } | 
|  | </style> | 
|  | <p>Test passes if the text below is white on green. | 
|  | <main class="highlight_reftest">quick</main> | 
|  | <script>selectNodeContents(document.querySelector("main"));</script> |