LayoutTests/transforms/3d/general/preserve-3d.html - WebKit - Git at Google

 <!DOCTYPE html>
 <style>
     div {
         width: 100px;
         height: 100px;
     }
 </style>
 <div style="background: green; transform-style: preserve-3d;">
     <div style="background: red; transform: translateZ(-10px);"></div>
 </div>
	<!DOCTYPE html>
	<style>
	div {
	width: 100px;
	height: 100px;
	}
	</style>
	<div style="background: green; transform-style: preserve-3d;">
	<div style="background: red; transform: translateZ(-10px);"></div>
	</div>