JSFiddle - React, Tailwind, and code Playground

HTML

<div class="col-xs-12">
    <div class="container">
          <div class="description-section">
<ul class="active-filter-razdel">
  <li class=" no-active-li-razdel active-li-razdel filter1">Описание</li>
</ul> 

<div class="description-container text block-information-razdel1 information-inner-item-display-none">
<?=$arResult["DETAIL_TEXT"]?>

</div>
  </div>
  </div>
</div>

JavaScript

let my = document.querySelector('.description-container');
if(my.innerText==''){
my.parentNode.parentNode.parentNode.style.display='none'
}