Ok, the issue is when you select 2 columns, it divides the feature area in two equal width sections. Since your right widget is wider than the left, you just need to put them into a table in one widget. So something like this:
<table>
<tr>
<td>
left code goes here
</td>
<td>
right code goes here
</td>
</tr>
</table>
Then switch the feature to just use one column.