eet" type="text/css" href="/fonts/ahem.css">
<style>
div { font: 50px/1 Ahem; }
.test {
    width: 2em;
    color: green;
    background: green;
}
.ref {
    position: absolute;
    z-index: -1;
    color: red;
}
</style>

<p>Test passes if there is a <strong>filled green square</strong> and <strong>no red</strong>.</p>
<div class="ref">XX<br>XX</div>
<div class="test">&#x3000;&#x3000;XX</div>
