<!DOCTYPE html>
<script>
    onload = function() {
        document.documentElement.scrollTop = 10000;
    }
</script>
<div style="position:fixed;">
    <p>Test that overflow on a spanner is propagated all the way up to the viewport.</p>
    <p>You should see the word 'PASS' below.</p>
</div>
<!-- We need the below block with restricted height, like in the test. One might think it doesn't
     matter, but because of crbug.com/450202 (which might not even be a bug), it does. -->
<div style="height:2em;">
    <div style="height:200vh;"></div>
    PASS
</div>