>
            <tr class="first_row">
                <td style='width:50%'>2.7</td>
                <td>3.0</td>
            </tr>
            <tr>
                <td>
                <pre class='tty'>import weewx.<span class="changed">abstractstation</span>
    
class ACME960(weewx.<span class="changed">abstractstation.AbstractStation</span>):
    ...</pre>
                </td>
                <td>
                <pre class='tty'>import weewx.<span class="changed">drivers</span>
    
class ACME960(weewx