JSFiddle - React, Tailwind, and code Playground

HTML

<div>
<div id="search_tab"></div>
</div>

CSS

div{
  height: 1000px;
  width: 400px;
}
#search_tab{
  background: red; 
}

JavaScript

var timer;     
$(window).scroll(function(e){
         clearTimeout(timer);
          $('#search_tab').fadeOut('slow');
          timer = setTimeout(checkStop,150);
     });

function checkStop(){
  $('#search_tab').fadeIn('slow');
}