JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div class="left">Left</div>
    <div class="right">Right
    </br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br>Hey
      
    </div>
</div>

CSS

.container 
{
    white-space: nowrap;
    font-size: 0px;   
}
.container .left
{
    width: 236px;
    vertical-align: text-top;
    display: inline-block;
    white-space: normal;
    font-size: 12px;
    background-color:grey;
}
.container .right
{
    vertical-align: text-top;
    display: inline-block;
    width: 708px;
    white-space: normal;
    font-size: 12px;
    background-color:yellow;
}