JSFiddle - React, Tailwind, and code Playground

HTML

<div style="display:inline-block;">
     <div>The content of this div is dynamically created but will always be wider than
          the below div. 
     </div>
     <div> Need this div to have the same width as the above diggggggggggggggggggggggggggggggggggggggggg.
     </div>
</div>

<hr>

<div style="display:inline-block;">
     <div>The content of this div is dynamically created but will always be wider than
          the below div.
     </div>
     <div> Need this div to have the same width as the above div.
     </div>
</div>

CSS

div {
    background-color:#eee;
}