<table style="width:100%;"><tr>
<td style="width:25%; vertical-align:top;">中身1</td>
<td style="width:25%; vertical-align:top;">中身2</td>
<td style="width:25%; vertical-align:top;">中身3</td>
<td style="width:25%; vertical-align:top;">中身4</td>
</tr></table>