JSFiddle - React, Tailwind, and code Playground

by David Thomas

HTML

<div id="parent">
    <div id="one">The first div, fixed width</div>
    <div id="two">The second, taking up the rest of the space.</div>
</div>

CSS

#parent {
    width: 90%;
    padding: 10px;
    background-color: #ffa;
    overflow: hidden;
}

#one {
    float: left;
    width: 100px;
    background-color: red;
}
#two {
    background-color: #f90;
}