JSFiddle - React, Tailwind, and code Playground

HTML

<div id="screen">
    <div id="leftDesc">This is a Long Description</div>
    <div id="rightDesc">100000000</div>
</div>

CSS

#screen
{    
    width: 200px;
}

#leftDesc
{    
    display: inline-block;
    overflow: hidden;
    float: left;
    height: 20px;
    max-width:160px;
    color: blue;
}

#rightDesc
{   
    float: right;
    display: inline-block;
    text-align: right;
    color: red;
}