horthand-properties" />
        <meta name="flags" content="" />
        <meta name="assert" content="The 'border-top' property applies to elements with a display of table-column-group." />
        <style type="text/css">* { margin: 0; padding: 0 }
            #test
            {
                border-top: solid green;
                display: table-column-group;
            }
            #table
            {
                border-collapse: collapse;
                display: table;
          