third_party/blink/web_tests/css3/masking/clip-path-reference-box-2.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <style>
 .clipped {
   width: 100px;
   height: 200px;
   background-color: green;
   -webkit-clip-path: polygon(0% 0%,100% 0%,100% 50%,0% 50%);
   clip-path: polygon(0% 0%,100% 0%,100% 50%,0% 50%);
 }
 </style>
 <div class="clipped">
   <div style="float:left; margin-left:-100px; margin-top:-100px;">&nbsp;</div>
 </div>
	<!DOCTYPE html>
	<style>
	.clipped {
	width: 100px;
	height: 200px;
	background-color: green;
	-webkit-clip-path: polygon(0% 0%,100% 0%,100% 50%,0% 50%);
	clip-path: polygon(0% 0%,100% 0%,100% 50%,0% 50%);
	}
	</style>
	<div class="clipped">
	<div style="float:left; margin-left:-100px; margin-top:-100px;"> </div>
	</div>