Vertical First Column CSS

HTML

<table cellpadding="0" cellspacing="0" align="center">
    <tr>
        <td class='rotate' rowspan="4"><div>10 kilograms</div></td>
        <td>B</td>
        <td>C</td>
        <td>D</td>
        <td>E</td>
    </tr>
    <tr>
        <td>G</td>
        <td>H</td>
        <td>I</td>
        <td>J</td>
    </tr>
    <tr>
        <td>L</td>
        <td>M</td>
        <td>N</td>
        <td>O</td>
    </tr>
    <tr>
        <td>Q</td>
        <td>R</td>
        <td>S</td>
        <td>T</td>
    </tr>
    
    <tr>
        <td class='rotate' rowspan="4"><div>20 kilograms</div></td>
        <td>B</td>
        <td>C</td>
        <td>D</td>
        <td>E</td>
    </tr>
    <tr>
        <td>G</td>
        <td>H</td>
        <td>I</td>
        <td>J</td>
    </tr>
    <tr>
        <td>L</td>
        <td>M</td>
        <td>N</td>
        <td>O</td>
    </tr>
    <tr>
        <td>Q</td>
        <td>R</td>
        <td>S</td>
        <td>T</td>
    </tr>
    
    <tr>
        <td class='rotate' rowspan="4"><div>30 kilograms</div></td>
        <td>B</td>
        <td>C</td>
        <td>D</td>
        <td>E</td>
    </tr>
    <tr>
        <td>G</td>
        <td>H</td>
        <td>I</td>
        <td>J</td>
    </tr>
    <tr>
        <td>L</td>
        <td>M</td>
        <td>N</td>
        <td>O</td>
    </tr>
    <tr>
        <td>Q</td>
        <td>R</td>
        <td>S</td>
        <td>T</td>
    </tr>
    
</table>

CSS

td {
    border: 1px black solid;
    padding: 5px;
}
.rotate {
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  width: 1.5em;
}
.rotate div {
     -moz-transform: rotate(-90.0deg);  /* FF3.5+ */
       -o-transform: rotate(-90.0deg);  /* Opera 10.5 */
  -webkit-transform: rotate(-90.0deg);  /* Saf3.1+, Chrome */
             filter:  progid:DXImageTransform.Microsoft.BasicImage(rotation=0.083);  /* IE6,IE7 */
         -ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=0.083)"; /* IE8 */
         margin-left: -10em;
         margin-right: -10em;
}