Help distinguish the controls for comparing revisions from the rest
of the content in the history page.
Change-Id: Ief8eb8a414c0ff2876f576f296145a94c5636962
$s .= Html::hidden( 'type', 'revision' ) . "\n";
// Button container stored in $this->buttons for re-use in getEndBody()
- $this->buttons = '<div>';
+ $this->buttons = Html::openElement( 'div', [ 'class' => 'mw-history-compareselectedversions' ] );
$className = 'historysubmit mw-history-compareselectedversions-button';
$attrs = [ 'class' => $className ]
+ Linker::tooltipAndAccesskeyAttribs( 'compareselectedversions' );