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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-variables/variable-first-line.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<title>CSS Variables with ::first-line pseudo-element.</title>
<meta rel="author" title="Kevin Babbitt">
<meta rel="author" title="Greg Whitworth">
<!-- This is not directly specified in the spec but should work -->
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
div {
width: 500px;
}
#div1::first-line {
color: var(--my-color);
--my-color: rgb(0, 0, 255);
}
#div2::first-line {
font-size: var(--my-font-size);
--my-font-size: 25px;
}
#div3::first-line {
font-weight: var(--my-font-weight);
--my-font-weight: 900;
}
#div4::first-line {
position: var(--my-position);
--my-position: absolute;
}
#div5::first-line {
color: var(--my-color1);
--my-color1: var(--my-color2);
--my-color2: rgb(0, 0, 255);
}
#div6::first-line {
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-line and its color should be blue.</div>
<br />
<div id="div2">CSS variable defining 'font-size' property should be applied to ::first-line and its font-size should be 25px.</div>
<br />
<div id="div3">CSS variable defining 'font-weight' property should be applied to ::first-line and its font-weight should be 900.</div>
<br />
<div id="div4">CSS variable defining 'position' property should not be applied to ::first-line and its position should be static.</div>
<br />
<div id="div5">CSS variable referencing another CSS variable that defines 'color' property should be applied to ::first-line and its color should be blue.</div>
<br />
<div id="div6">CSS variable referencing another CSS variable that defines 'position' property should not be applied to ::first-line and its position should be static.</div>
<script>
"use strict";
let templates = [
{ 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" },
];
templates.forEach(function (template) {
test( function () {
var elem = document.getElementById(template.elementId);
var actualValue = window.getComputedStyle(elem, ':first-line').getPropertyValue(template.property);
assert_equals(template.expectedValue, actualValue);
}, template.testName);
});
</script>
</body>
</html>