File: variable-substitution-replaced-size.html

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<!DOCTYPE html>
<html>
<head>
    <title>variable substitution into size properties on certain replaced elements</title>

    <meta rel="author" title="Kevin Babbitt">
    <meta rel="author" title="Greg Whitworth">
    <link rel="author" title="Microsoft Corporation" href="http://microsoft.com" />
    <link rel="help" href="http://www.w3.org/TR/css-variables-1/#defining-variables">

    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <style>
        .testcases > *
        {
            border: none;
            --w: 10px;
            --h: 10px;
            width: calc(var(--w) + 20px);
            height: calc(var(--h) + 20px);
        }
    </style>
</head>
<body>
    <div class="testcases">
        <iframe></iframe>
        <input type="text">
        <canvas></canvas>
    </div>

    <script type="text/javascript">
        "use strict";

        var testcases = document.querySelectorAll(".testcases > *");
        for (var i = 0; i < testcases.length; i++)
        {
            test(function() {
                assert_equals(window.getComputedStyle(testcases[i]).width, "30px");
                }, "width on " + testcases[i].tagName);
            test(function() {
                assert_equals(window.getComputedStyle(testcases[i]).height, "30px");
                }, "height on " + testcases[i].tagName);
        }
    </script>
</body>
</html>