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<html><head><style>table, th, td { border: 1px solid black;}</style></head><body><h1>The colgroup element</h1><table> <colgroup> <col span="2" style="background-color:red"> <col style="background-color:yellow"> </colgroup> <tr> <th>ISBN</th> <th>Title</th> <th>Price</th> </tr> <tr> <td>3476896</td> <td>My first HTML</td> <td>$53</td> </tr> <tr> <td>5869207</td> <td>My first CSS</td> <td>$49</td> </tr></table></body><!-- Mirrored from www.w3schools.com/tags/tryit.asp?filename=tryhtml_colgroup_test by HTTrack Website Copier/3.x [XR&CO'2014], Wed, 21 Dec 2022 17:33:41 GMT --></html>