JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
<div class="wrapleft">
    Welcome left 
</div>
<div class="wrap">
    Welcomeaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ccccccccccc
</div>

</div>

CSS

.wrap{
    background: red;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 1;
    text-align: center;
    color: #fff;
    
}

.wrapleft{
    background: green;
  width:100%;
    text-align: center;
    color: #fff;
    overflow:auto;
}