A shortcode to show content if cookies are not accepted

WP-cookies-not-accepted-shortcode.php

<?php /* Shortcode Cookie Not Accepted */
function custom_cn_cookies_not_accepted( $atts, $content = null ) {
  if (function_exists('cn_cookies_accepted') && !cn_cookies_accepted()) {
    return '<div class="box cookie-box">' . do_shortcode($content) . '</div>';
  } else {
    return '';
  }
}
add_shortcode('cookies_not_accepted', 'custom_cn_cookies_not_accepted');
?>