JSFiddle - React, Tailwind, and code Playground

HTML

<div class="box" id="tim"></div>
<div class="box" id="green"></div>
<div class="box" id="brittney"></div>

CSS

.box {
    width: 100px;
    height: 100px;
}
#tim {
     background: red;   
}
#green {
    background: green;
}
#brittney {
    background: blue;
}