<!DOCTYPE html>
<html>
<script>
internals.settings.setCSSVariablesEnabled(true);
</script>
<style>
div {
  background-color: -webkit-var(NaMe);
  -webkit-var-nAmE: green;
  padding-left: -webkit-var(padding);
  -WEBKIT-VAR-padding: 200px;
}
</style>
<div>This text should have a transparent background and no left padding.</div>
</html>