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<html><head><style>table, th, td { border: 1px solid black; border-collapse: collapse;}</style></head><body><h2>Multiple Col Elements</h2><p>Add multiple col elements in the colgroup:</p><table style="width: 100%;"> <colgroup> <col span="2" style="background-color: #D6EEEE"> <col span="3" style="background-color: pink"> </colgroup><tr><th>MON</th><th>TUE</th><th>WED</th><th>THU</th><th>FRI</th><th>SAT</th><th>SUN</th></tr><tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td><td>6</td><td>7</td></tr><tr><td>8</td><td>9</td><td>10</td><td>11</td><td>12</td><td>13</td>