JSFiddle - React, Tailwind, and code Playground

HTML

<div class="block1"></div>
<div class="block2"></div>

CSS

div {
    width: 200px;
    height: 100px;
}

.block1 {
    background-color: lightblue;
    margin-bottom: 30px;
}

.block2 {
    background-color: lightgreen;
    margin-top: 20px;
}