<!--
     Any copyright is dedicated to the Public Domain.
     http://creativecommons.org/publicdomain/zero/1.0/
-->
<!DOCTYPE HTML>
<html>
<style>
.reftest {
  width: 100px;
  height: 100px;
}

.color {
  background-color: rgb(0, 255, 0);
}

</style>
<div class="reftest color"></div>
</html>