"<col class='diff-marker' />" .
"<col class='diff-content' />" .
"<tr>" .
- "<td colspan='2' width='50%' align='center' class='diff-otitle'>" .
+ "<td colspan='2' width='50%' style='text-align: center' class='diff-otitle'>" .
$this->diffHeader( $previousRev, 'o' ) .
"</td>\n" .
- "<td colspan='2' width='50%' align='center' class='diff-ntitle'>" .
+ "<td colspan='2' width='50%' style='text-align: center' class='diff-ntitle'>" .
$this->diffHeader( $currentRev, 'n' ) .
"</td>\n" .
"</tr>" .