Results 2 comments of Charles

use this instead form zurb web site : script> $(window).load(function () { $('.twentytwenty-container').eq(0).twentytwenty({ default_offset_pct: 0.33 }); $('.twentytwenty-container').eq(1).twentytwenty(); });

I also have the same issue but only on Safari Mac when I disable status bar (in safari setting) the twenty-twenty module gets loaded. Anyone have solved this issue?