<!DOCTYPE html>
<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
--><html><head><title>CSS Test: Test the use of two variables in a non-custom property where one variable is inherited and the other references a non-existing variable with fallback that consists only of white space.</title>
<link href="mailto:cam@mcc.id.au" rel="author" title="Cameron McCormack">
<link href="http://www.w3.org/TR/css-variables-1/#using-variables" rel="help">
<link href="support/color-green-ref.htm" rel="match">
<style>
:root {
  --a: green;
  color: red;
}
p {
  color: crimson;
  color: var(--a) var(--b, );
}
</style>
</head><body><p>This text must be green.</p>
</body></html>