<!DOCTYPE html>
<title>Reference</title>
<link rel="author" title="Javier Fernandez" href="mailto:jfernandez@igalia.com">
<style>
    .box {
       width: 100px;
       height: 100px;
       background-color: grey;
       overflow: auto;
    }
    .item {
       width: 150px;
       height: 150px;
    }
</style>
<p>The test passes if you see a grey square below and both scrollbars are visible.</p>
<div class="box"><div class="item"></div></div>