html中table边框颜色怎么设置

<table border="5"align="center"height="100"width="400"bordercolor="red">  <tr>    <td>单元格1</td>    <td>单元格2</td>  </tr>  <tr>    <td>单元格3</td>    <td>单元格4</td>  </tr></table>