JSFiddle - React, Tailwind, and code Playground

HTML

<div class="grid grid1" >
  <div class="item" id="item_13">
      This is item 13
  </div>
  <div class="item" id="item_14">
      This is item 14
  </div>
</div><script>(function(){
    var nodes = document.body.childNodes;
    var prevSibling = nodes[nodes.length - 2];
    
    $(document).ready(function(){
        console.log( prevSibling );
    })
 
})();</script>


<div class="grid grid2" >
  <div class="item" id="item_15">
      This is item 15
  </div>
  <div class="item" id="item_16">
      This is item 16
  </div>
</div><script>(function(){
    var nodes = document.body.childNodes;
    var prevSibling = nodes[nodes.length - 2];
    
    $(document).ready(function(){
        console.log( prevSibling );
    })
 
})();</script>