document.addEventListener('DOMContentLoaded', function() { jQuery(function($){ var mywindow = $(window); var mypos = mywindow.scrollTop(); mywindow.scroll(function() { if (mypos > 50) { if(mywindow.scrollTop() > mypos) { let headerHeight = $('#stickybutton').outerHeight(); $('#stickybutton').css('transform','translateY(+50px)'); } else { $('#stickybutton').css('transform','translateY(0px)'); } } mypos = mywindow.scrollTop(); }); }); });