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+<!DOCTYPE html>
+<html>
+<head>
+ <title>CSS Variables with ::first-letter pseudo-element.</title>
+
+ <meta rel="author" title="Kevin Babbitt">
+ <meta rel="author" title="Greg Whitworth">
+ <link rel="author" title="Microsoft Corporation" href="http://microsoft.com" />
+ <!-- This is not directly specified in the spec but should work -->
+ <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>
+ #div1::first-letter {
+ color: var(--my-color);
+ --my-color: rgb(0, 0, 255);
+ }
+
+ #div2::first-letter {
+ font-size: var(--my-font-size);
+ --my-font-size: 25px;
+ }
+
+ #div3::first-letter {
+ font-weight: var(--my-font-weight);
+ --my-font-weight: 900;
+ }
+
+ #div4::first-letter {
+ position: var(--my-position);
+ --my-position: absolute;
+ }
+
+ #div5::first-letter {
+ color: var(--my-color1);
+ --my-color1: var(--my-color2);
+ --my-color2: rgb(0, 0, 255);
+ }
+
+ #div6::first-letter {
+ position: var(--my-position1);
+ --my-position1: var(--my-position2);
+ --my-position2: absolute;
+ }
+ </style>
+</head>
+<body>
+ <div id="div1">CSS variable defining 'color' property should be applied to ::first-letter and its color should be blue.</div>
+ <div id="div2">CSS variable defining 'font-size' property should be applied to ::first-letter and its font-size should be 25px.</div>
+ <div id="div3">CSS variable defining 'font-weight' property should be applied to ::first-letter and its font-weight should be 900.</div>
+ <div id="div4">CSS variable defining 'position' property should not be applied to ::first-letter and its position should be static.</div>
+ <div id="div5">CSS variable referencing another CSS variable that defines 'color' property should be applied to ::first-letter and its color should be blue.</div>
+ <div id="div6">CSS variable referencing another CSS variable that defines 'position' property should not be applied to ::first-letter and its position should be static.</div>
+
+ <script>
+ "use strict";
+ var testcases = [
+ { elementId: "div1", property: "color", expectedValue: "rgb(0, 0, 255)", testName: "color" },
+ { elementId: "div2", property: "font-size", expectedValue: "25px", testName: "font-size" },
+ { elementId: "div3", property: "font-weight", expectedValue: "900", testName: "font-weight" },
+ { elementId: "div4", property: "position", expectedValue: "static", testName: "position" },
+ { elementId: "div5", property: "color", expectedValue: "rgb(0, 0, 255)", testName: "nested color" },
+ { elementId: "div6", property: "position", expectedValue: "static", testName: "abspos" },
+ ];
+
+ testcases.forEach(function (tc) {
+ test( function () {
+ var elem = document.getElementById(tc.elementId);
+ var actualValue = window.getComputedStyle(elem, ':first-letter').getPropertyValue(tc.property);
+ assert_equals(tc.expectedValue, actualValue);
+ }, tc.testName);
+ });
+ </script>
+</body>
+</html>
+