wp_admin_viewport_meta

WordPress Version: 5.5

/**
 * Displays the viewport meta in the admin.
 *
 * @since 5.5.0
 */
function wp_admin_viewport_meta()
{
    /**
     * Filters the viewport meta in the admin.
     *
     * @since 5.5.0
     *
     * @param string $viewport_meta The viewport meta.
     */
    $viewport_meta = apply_filters('admin_viewport_meta', 'width=device-width,initial-scale=1.0');
    if (empty($viewport_meta)) {
        return;
    }
    echo '<meta name="viewport" content="' . esc_attr($viewport_meta) . '">';
}