JSFiddle - React, Tailwind, and code Playground

HTML

<div class="container">
    <div id="div1">
     &nbsp;
    </div>    
    <div id="div2">
     &nbsp;
    </div>
</div>

CSS

.container{
    width: 100%;
}
#div1{
    width: 100px;
    background: red;
    float: left;
}
#div2{
    background: green;
}