<!DOCTYPE html>
<style>
 p { position: relative; height: 100px; width: 100px; background: url(resources/64x32-red.png) no-repeat top 99.9%; }
 span { height: 32px; width: 64px; position: absolute; top: 0; right: 0; background: white; }
</style>
<div>There should be no red below.</div>
<p><span></span></p>