JSFiddle - React, Tailwind, and code Playground

HTML

<div class="left"> 
    text
</div> 
    
<div class="right"> 
    text
</div>

CSS

.left { 
    float: left; 
    width: 200px;
    background-color: #EEEEEE; 
} 
.right {
    background-color: lightBlue;
}