<!DOCTYPE html>
<div style="position:absolute; left:50px; top:50px; width:100px; height:100px; clip:rect(20px, 80px, 80px, 20px);">
<div style="width:100px; height:100px; filter:blur(5px)">
<div style="width:100px; height:100px; background:green;"></div>
</div>
</div>
This test verifies CSS clip correctly applies to the output of stacking context effects if both present on the same element.