JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="a"></div>
    <div class="b"></div>
    <div class="c"></div>
</div>

CSS

.container{
    background-color: red;
    width: 90%;
    margin: 0 auto;
    height: 200px;
    overflow: hidden;
}

.a{
   background-color: yellow;
   height: 30px;  
   margin: 2px;    
}

.b{
   background-color: blue;
   height: 30px; 
   margin: 2px;    
}

.c{
   background-color: green;
   height: 132px; 
   margin: 2px;   
   overflow-y: scroll;    
}