LayoutTests/fast/inline/hidpi-underline-under-superscript.html - external/github.com/WebKit/webkit - Git at Google

 <!DOCTYPE html>
 <style>
 div {
     font-family: Arial;
     font-size: 100px;
     color: transparent;
     text-decoration: underline green;
 }
 span {
     font-size: 10px;
     vertical-align: 0.7px;

 }
 </style>
 <div>X<span>X</span></div>
	<!DOCTYPE html>
	<style>
	div {
	font-family: Arial;
	font-size: 100px;
	color: transparent;
	text-decoration: underline green;
	}
	span {
	font-size: 10px;
	vertical-align: 0.7px;

	}
	</style>
	<div>X<span>X</span></div>