html change table row background colors code example

Example: tr background color

<table>
  <tr bgcolor="#ddd">
    <td>First column</td>
    <td>Second column</td>
    <td>Third column</td>
  </tr>
  <tr bgcolor="#eee">
    <td>First column</td>
    <td>Second column</td>
    <td>Third column</td>
  </tr>
  <tr bgcolor="#ddd">
    <td>First column</td>
    <td>Second column</td>
    <td>Third column</td>
  </tr>
</table>