HTM标签属性

修改td 背景颜色：<td style="background-color:red">

thread的使用例子：

<table border="1" width="100%"><thead><tr><td colspan="4">This is the head of the table</td></tr></thead><tfoot><tr><td colspan="4">This is the foot of the table</td></tr></tfoot><tbody><tr><td>Cell 1</td><td>Cell 2</td><td>Cell 3</td><td>Cell 4</td></tr><tr>...more rows here containing four cells...</tr></tbody><tbody><tr><td>Cell 1</td><td>Cell 2</td><td>Cell 3</td><td>Cell 4</td></tr><tr>...more rows here containing four cells...</tr></tbody></table>