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:
Texas's 22nd congressional district
Table title:
2014
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></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Democratic </td><td class="highlighted"  colspan=1 rowspan=1 > Frank Briscoe </td><td colspan=1 rowspan=1 > 3,378 </td><td class="highlighted"  colspan=1 rowspan=1 > 53.18 </td></tr>
<tr> <td colspan=1 rowspan=1 >  </td><td class="highlighted"  colspan=1 rowspan=1 > Democratic </td><td class="highlighted"  colspan=1 rowspan=1 > Mark Gibson </td><td colspan=1 rowspan=1 > 2,973 </td><td colspan=1 rowspan=1 > 46.81 </td></tr>
<tr> <th colspan=3 rowspan=1 > Total votes </th><td colspan=1 rowspan=1 > 6,351 </td><td colspan=1 rowspan=1 > 100 </td></tr>
</table>
Question:
By what percentage of the vote did Democrat Frank Briscoe beat fellow Democrat Mark Gibson?
Answer:
Democrats Frank Briscoe and Mark Gibson ran for their party's nomination and Briscoe won with 53.18% of the vote.