table2

<table class="temperature-table" cellspacing="0">
                <tr>
                    <td rowspan="3">Temperature (&plusmn;0.1&deg;C)</td>
                    <td colspan="3">Time(&plusmn;0.2s)</td>
                </tr>
            <tr>
                <td rowspan="2" class="inner-cell">Trial 1</td>
                <td rowspan="2" class="inner-cell">Trial 2</td>
                <td rowspan="2" class="inner-cell">Trial 3</td>
            </tr>
            <tr></tr>
            <tr></tr>
            <tr>
                <td>10</td>
                <td>10</td>
                <td>10</td>
                <td>10</td>
            </tr>
            <tr>
                <td>10</td>
                <td>10</td>
                <td>10</td>
                <td>10</td>
            </tr>
            <tr>
                <td>10</td>
                <td>10</td>
                <td>10</td>
                <td>10</td>
            </tr>
            <tr>
                <td>10</td>
                <td>10</td>
                <td>10</td>
                <td>10</td>
            </tr>
        </table>