public function afterLayout(\Cake\Event\Event $event)
 {
     $content = $event->subject->Blocks->get('content');
     $parser = new \InlineStyle\InlineStyle();
     libxml_use_internal_errors(true);
     $parser->loadHTML($content);
     libxml_use_internal_errors(false);
     $parser->applyStylesheet($parser->extractStylesheets());
     $content = $parser->getHtml();
     $event->subject->Blocks->set('content', $content);
 }