JSFiddle - React, Tailwind, and code Playground

HTML

<div id="listofstuff">
<div class="anitem">
       <span class="itemname">Item1</h3></span>
       <span class="itemdescruption">AboutItem1</span>
</div>
<div class="anitem">
       <span class="itemname">Item2</h3></span>
       <span class="itemdescruption">AboutItem2</span>
</div>
<div class="anitem">
       <span class="itemname">Item3</h3></span>
       <span class="itemdescruption">AboutItem3</span>
</div>
</div>

JavaScript

$(".anitem").click(function() {
   $(this).css("backgroundColor", "red"); 
});