JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrapper1">
    <div class="first"></div>
</div>
<div class="wrapper2">
    <div class="second"></div>
</div>

CSS

body {margin: 0;}
div.wrapper1 {
    margin: 10px auto 10px 10px;
    width: 66%;
}
div.wrapper2 {
    margin: 10px 10px 10px auto;
    width: 66%;
}
.first, .second {
    border: 1px solid #8d8d8d;
    height: 100px;
}
.first {background-color: #fefd8f;}
.second {background-color: #f6ccfc;}