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<!DOCTYPE html>
<!--
Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/
--><html><head><title>CSS Test: Test declaring a variable whose value consists of a reference to a variable whose value is "unset".</title>
<link href="mailto:cam@mcc.id.au" rel="author" title="Cameron McCormack">
<link href="http://www.w3.org/TR/css-variables-1/#defining-variables" rel="help">
<link href="support/color-green-ref.htm" rel="match">
<style>
body {
--b: green;
color: crimson;
}
p {
color: red;
}
p {
color: orange;
--a: var(--b);
--b: unset;
color: var(--a);
}
</style>
</head><body><p>This text must be green.</p>
</body></html>
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