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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<title>CSS Variables Test: custom property names start with "var-" in lower case</title>
<meta charset="UTF-8" />
<link href="mailto:noahcollins@gmail.com" rel="author" title="Noah Collins" />
<style type="text/css">
:root {
/* these should be VALID custom property names */
var-veryblue: #22e;
var-AlsoBlue: #22e;
/* these should be INVALID custom property names */
VAR-veryred: #f00;
Var-AlsoRed: #f00;
}
.blue-good-1 { color: var(veryblue); }
.blue-good-2 { color: var(AlsoBlue); }
.red-bad-1 { color: var(veryred); }
.red-bad-2 { color: var(AlsoRed); }
</style>
</head>
<body>
<h2 class="blue-good-1">Valid CSS Variable Names</h2>
<p class="blue-good-1">This paragraph is styled using a valid CSS Variable name. It should be blue.</p>
<p class="blue-good-2">This paragraph is styled using a valid CSS Variable name. It should be blue.</p>
<br />
<h2>Invalid CSS Variable Names</h2>
<p>This paragraph is styled using an invalid CSS Variable name. Fail if red.</p>
<p>This paragraph is styled using an invalid CSS Variable name. Fail if red.</p>
</body></html>
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