'Arrow Up', 'dashicons-arrow-up-alt' => 'Arrow Up Alt', 'dashicons-arrow-up-alt2' => 'Arrow Up Alt 2', ); public function render_content() { $output = ''; $output .= ''; $allowed_select_html = array( 'label' => array(), 'span' => array( 'class' => true, ), 'select' => array( 'id' => true, 'name' => true, 'class' => true, 'data-customize-setting-link' => true, ), 'option' => array( 'value' => true, 'class' => true, 'selected' => true, ), ); echo wp_kses($output, $allowed_select_html); } }