JSFiddle - React, Tailwind, and code Playground

HTML

<li>
    <div class="notification_div" style="padding-top: 6px;">
         <a class="wasAdRead" style="cursor:pointer;">Remind me later</a>
    </div>
</li>

CSS

li > .notification_div > .wasAdRead:hover{
   display:block;
   padding-top:6px;
   cursor: pointer;
   background-color:red;
}