<!DOCTYPE html> <meta charset="UTF-8"> <title>CSS Pseudo-Elements Test: active selection and background-color (basic)</title> <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <link rel="help" href="https://www.w3.org/TR/css-pseudo-4/#highlight-selectors"> <link rel="help" href="https://www.w3.org/TR/css-pseudo-4/#highlight-styling"> <link rel="match" href="reference/active-selection-012-ref.html"> <link rel="stylesheet" href="support/highlights.css"> <style> div { background-color: red; color: fuchsia; display: inline; font-size: 300%; } div::selection { background-color: green; color: aqua; } /* Chromium 77.0.3855.0 and above create a background-color #334C00 or rgb(51, 76, 0) and not a green (#008000 or rgb(0, 128, 0)) background color. */ </style> <script> function startTest() { var targetRange = document.createRange(); /* We first create an empty range */ targetRange.selectNodeContents(document.getElementById("test")); /* Then we set the range boundaries to the children of div#test */ window.getSelection().addRange(targetRange); /* Finally, we now select such range of content */ } </script> <body onload="startTest();"> <p>Test passes if the background color of each glyph of "Selected Text" is green and <strong>not red</strong> while each glyph of "Selected Text" is aqua and <strong>not fuchsia</strong>. <div id="test" class="highlight_reftest">Selected Text</div>