 </x-tr>
        <x-tr>
            <x-td>
                <span>row 2</span>
            </x-td>
            <x-td>
                <span></span>
            </x-td>
        </x-tr>
    </x-table>
</main>

<script>
    row = document.getElementById("collapse");
    row.style.visibility = "collapse";

    tests = [
        [
            document.getElementById('two').offsetWidth,
            document.getElementById('one').offsetWidth,
            "row visibility:collapse doesn't change table width, unlike d