css/css-variables/variable-declaration-21.html

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<!DOCTYPE html>
<title>CSS Test: Test declaring a variable that consists of a function where all of the arguments and commas are made up of variable references.</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/#syntax">
<link rel="match" href="support/color-green-ref.html">
<style>
p {
  color: red;
}
p {
  color: orange;
  --a: rgb(var(--b)var(--c)var(--d));
  --b: 0,;
  --c: 128,;
  --d: 0;
  color: var(--a);
}
</style>
<p>This text must be green.</p>