third_party/blink/web_tests/compositing/child-transform-layer-with-child-clipping-layer-expected.html - chromium/src - Git at Google

 <!DOCTYPE HTML>
 <style>
 .perspective {
     background: red;
     width: 100px;
     height: 100px;
     overflow: hidden;
     box-shadow: 0 0 100px 100px rgba(10, 10, 10, 0.0);
 }
 .cover {
     background: green;
     height: 500px;
 }
 </style>
 <div class="perspective">
     <div class="cover"></div>
 </div>
	<!DOCTYPE HTML>
	<style>
	.perspective {
	background: red;
	width: 100px;
	height: 100px;
	overflow: hidden;
	box-shadow: 0 0 100px 100px rgba(10, 10, 10, 0.0);
	}
	.cover {
	background: green;
	height: 500px;
	}
	</style>
	<div class="perspective">
	<div class="cover"></div>
	</div>