Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
St Ives (UK Parliament constituency)
Table title:
Elections in the 2010s
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=2 rowspan=1 > Party </th><th colspan=1 rowspan=1 > Candidate </th><th colspan=1 rowspan=1 > Votes </th><th colspan=1 rowspan=1 > % </th><th colspan=1 rowspan=1 > ± </th></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Conservative </td><td colspan=1 rowspan=1 > Derek Thomas </td><td class="highlighted"  colspan=1 rowspan=1 > 22,120 </td><td colspan=1 rowspan=1 > 43.2 </td><td colspan=1 rowspan=1 > +4.9 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Liberal Democrat </td><td colspan=1 rowspan=1 > Andrew George </td><td class="highlighted"  colspan=1 rowspan=1 > 21,808 </td><td colspan=1 rowspan=1 > 42.6 </td><td colspan=1 rowspan=1 > +9.4 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=1 rowspan=1 > Labour </td><td colspan=1 rowspan=1 > Christopher Drew </td><td colspan=1 rowspan=1 > 7,298 </td><td colspan=1 rowspan=1 > 14.3 </td><td colspan=1 rowspan=1 > +4.9 </td></tr>
<tr> <th colspan=3 rowspan=1 > Majority </th><td colspan=1 rowspan=1 > 312 </td><td colspan=1 rowspan=1 > 0.6 </td><td colspan=1 rowspan=1 > 4.5 </td></tr>
<tr> <th colspan=3 rowspan=1 > Turnout </th><td colspan=1 rowspan=1 > 51,226 </td><td colspan=1 rowspan=1 > 75.9 </td><td colspan=1 rowspan=1 > +2.2 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td colspan=2 rowspan=1 > Conservative hold </td><th colspan=1 rowspan=1 > Swing </th><td colspan=1 rowspan=1 > 2.3 </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
What was the margin of votes between the first- and second-place finishers in the St Ives election?
Answer:
St Ives's election was won by a margin of, 312 votes.