move mediawiki table of contents to the right to make text of that page visible at the same time as table of contents?

Can we move the table of contents to the right side so the user can see the table of contents at the same time as the text of a wiki page?

From

Can be tested at a per page thing.

<div style="float:right;">__TOC__</div>

This breaks some wiki pages.

Looks good or bad?