css/css-variables/variable-reference-02.html

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<!DOCTYPE html>
<title>CSS Test: Test the use of a variable in a non-custom property where the value is invalid at computed-value time due to referencing a non-existent variable.</title>
<link rel="author" title="Cameron McCormack" href="mailto:cam@mcc.id.au">
<link rel="help" href="http://www.w3.org/TR/css-variables-1/#invalid-variables">
<link rel="match" href="support/color-green-ref.html">
<style>
:root {
  --a: crimson;
  color: red;
}
body {
  color: green;
}
p {
  color: orange;
  color: var(--a) var(--b);
}
</style>
<p>This text must be green.</p>