JSFiddle - React, Tailwind, and code Playground

HTML

<div class="text1">Text 1</div>
<div class="text2">Text 2</div>

CSS

.text1, .text2 {
    width: 200px;
    padding: 8px 12px;
    display: block;
    background-color: gray;
    margin: 5px;
}

.text1:after {
    content:"";
    background: red;
    display: block;
    position: relative;
    width: 20px;
    height: 10px;
    left: 180px;
    top: 20px;
}