<!DOCTYPE html> <meta charset="UTF-8"> <title>CSS Values Test: computed value of rgb() with calc(percentage)</title> <!-- Original code is from Yves Lafon Re: [css3-values] percentage in calc() and attr() https://lists.w3.org/Archives/Public/www-style/2016May/0028.html --> <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <link rel="help" href="https://www.w3.org/TR/css-values-3/#calc-notation"> <script src="/resources/testharness.js"></script> <script src="/resources/testharnessreport.js"></script> <style> div#target { background-color: rgb(calc(5% + 15%), calc(40% / 2), calc(5% * 4)); height: 100px; } </style> <div id="target"></div> <script> test(function() { assert_equals(getComputedStyle(document.getElementById("target")).backgroundColor, "rgb(51, 51, 51)"); }, "testing rgb(calc(5% + 15%), calc(40% / 2), calc(5% * 4))"); </script>