LayoutTests/fast/block/inside-inlines/empty-block.html - WebKit - Git at Google

 <!doctype html>

 The two lines below should look identical.

 <div>

 <a style="line-height:2; background-color:green; padding:0 100px">&nbsp;&nbsp;
 <div></div>
 &nbsp;&nbsp;</a>
 </div>
	<!doctype html>

	The two lines below should look identical.

	<div>

	<a style="line-height:2; background-color:green; padding:0 100px">
	<div></div>
	</a>
	</div>