css/css-pseudo/selection-link-002.html

<!DOCTYPE html>
<meta charset="utf-8" />
<title>CSS Pseudo-Elements Test: ::selection on visited and unvisited links</title>
<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-pseudo/#highlight-selectors">
<meta name="assert" content="This test checks that ::selection works as expected when only unvisited links have pseudo style.">
<link rel="match" href="selection-link-002-ref.html">
<script src="support/selections.js"></script>
<style>
  a {
    text-decoration: none;
    color: black;
  }
  a:link::selection {
    color: green;
  }
</style>

<p>Test passes if when selecting the content "visited" is selected with the default colors and "unvisited" has a green color and white background.</p>
<main>
  <a href="">visited</a>
  <a href="#">unvisited</a>
</main>

<script>selectNodeContents(document.querySelector("main"));</script>