<!DOCTYPE html>
<html>
    <head>
        <title>Multicol with unresolvable percentage height</title>
    </head>
    <body>
        <p>There should be a blue square below, and no unnecessary scrollbar.</p>
        <div style="-webkit-columns:2; columns:2; width:200px; max-height:100%; background:blue;">
            <div style="height:400px;"></div>
        </div>
    </body>
</html>