JSFiddle - React, Tailwind, and code Playground

HTML

<div id='category'>

     <div id="search_filters_wrapper">
         Filter
     </div>  
       <div class="st_banner_row" style="">
           There is Banner
       </div>
</div>

CSS

.st_banner_row{
    border: 2px solid black;
    width: max-content; 
    margin-top: 1rem;
  }

JavaScript

var elementExists = document.getElementById('category').getElementsByClassName('st_banner_row');
if (typeof(elementExists) != 'undefined' && elementExists != null)
{
    $("#search_filters_wrapper").css({
            display: none,
        });

}