<html>

<style> .twentytwenty-wrapper {

 -webkit-touch-callout: none; /* iOS Safari */
   -webkit-user-select: none; /* Safari */
    -khtml-user-select: none; /* Konqueror HTML */
      -moz-user-select: none; /* Firefox */
       -ms-user-select: none; /* Internet Explorer/Edge */
           user-select: none; /* Non-prefixed version, currently
                                 supported by Chrome and Opera */

} .twentytwenty-overlay {

   display: none;

} </style>

<img src= />
<img src= />

<script type="text/javascript"> mw.loader.load("https://fuerthwiki.de/wiki/resources/lib/twentytwenty/jquery.twentytwenty.min.js"); $(function(){

 console.log("twentytwenty");
 $('.twentytwenty-container').twentytwenty();

}); </script>

</html>