PortableInfobox/PortableInfoboxHooks.class.php

<?php

class PortableInfoboxHooks {
	static public function onBeforePageDisplay( OutputPage $out, Skin $skin ) {
		if ( F::app()->checkSkin( 'monobook', $skin ) ) {
			Wikia::addAssetsToOutput( 'portable_infobox_monobook_scss' );
		} else {
			Wikia::addAssetsToOutput( 'portable_infobox_scss' );
		}

		return true;
	}
}