Help:Htmlbug fix

Examples of how to fix htmlbug:

Before: After: {| class="navbox collapsible" style="margin:auto; background:white;" Before: Heading After: !colspan="4" |Heading
 * -style="text-align:center;width:100%;"

Before: This is a cell After:
 * - style="text-align:center;"
 * colspan="2" | This is a cell