<!DOCTYPE html> <!-- webkit-test-runner [ internal:LayoutFormattingContextEnabled=true internal:LayoutFormattingContextIntegrationEnabled=false ] -->
<html>
<body>
    <div style="overflow: hidden; width: 20px; height: auto;">
        <div style="margin-bottom: 20px; width: 20px; height: 50px;"></div>
    </div>
    <div style="margin-top: 10px; width: 20px; height: 10px;"></div>
</body>
</html>