<!DOCTYPE html>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();
</script>
<p>Spanner inside block with fixed height. There's unused space in the column where the spanner occurs.</p>
<p>PASS if no crash or assertion failure.</p>
<div style="-webkit-columns:2; line-height:2em;">
    <br>
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    <br>
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    <div style="height:1em;"></div>
    <div style="height:1em;">
        <div style="-webkit-column-span:all;"></div>
    </div>
    <br>
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</div>