JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrapper">
    <div id="c1">con1</div>
    <div id="c2">con2</div>
</div>

CSS

#wrapper {
    background:#000;
    overflow: hidden
}
#c1 {
    float:left;
    background:red;
}
#c2 {
    background:green;
    float: right
}