protected function getStyles() { $_sParentStyles = parent::getStyles(); return $_sParentStyles . <<<CSSRULES /* Posttype Field Type */ .admin-page-framework-field input[type='checkbox'] { margin-right: 0.5em; } .admin-page-framework-field-posttype .admin-page-framework-input-label-container { padding-right: 1em; } CSSRULES; }