JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent-div">
  <div class="parent-image">
  </div>

 <div class="child-div">
     
 </div>

</div>

CSS

.parent-div{
    background:#333;
    height:200px;
}

.child-div{
    background:#828;
    height:100%;
}