ta name="flags" content="" />
        <meta name="assert" content="The property 'display' set to 'table-header-group' behaves in layout as a table header group." />
        <style type="text/css">* { margin: 0; padding: 0 }
            #table
            {
                display: table;
            }
            #test
            {
                background: blue;
                display: table-header-group;
            }
            #rowgroup
            {
                display: table-row