<style>
div.get-involved-sprite {
width: 192px;
height: 43px;
background: url("Images/magazine/issue-2013-winter/get-involved-sprite.png") 0 0;
position: relative;
}
div.get-involved-sprite:hover {
background: url("Images/magazine/issue-2013-winter/get-involved-sprite.png") 0 43px;
}
</style>
<div style="float: right;">
<div class="get-involved-sprite">
<a href="x46435.xml">
<!-- The span expands to 100% of the div,
making the link take up the whole button -->
<span class="make-link"></span>
</a>
</div>
</div>