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<p>Bug 64284: Crash in RenderBox::paintBoxDecorations when documentElement has no renderer</p>
<p>For this test to PASS, it should not ASSERT or CRASH.</p>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    function go() {
        document.open();
        var oUElement = document.createElement("U");
        oUElement.hidden=true;
        oUElement.innerHTML="<style>*{border-block-start-style:groove}";
        document.appendChild(oUElement);
        document.close();
    }
</script>
</body>
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