/** * Display tabs. * * @param string $current_tab */ public function tabs($current_tab) { echo '<style type="text/css"> h3.nav-tab-wrapper { margin-bottom: 1em; } @media screen and (max-width: 480px) { h3.nav-tab-wrapper { padding: 0; } h3 .nav-tab { width: 100%; margin: 0; display: block; padding: 10px 0; text-align: center; } } </style>'; parent::tabs($current_tab); }