JSFiddle - React, Tailwind, and code Playground

HTML

<div id="box">Box.</div>

CSS

#box {
    /* styles for the shadow */
    box-shadow: 2px 3px 10px #777;
    -webkit-box-shadow: 1px 2px 4px #777;
    -moz-box-shadow: 1px 2px 4px #777;
    
    /* styles for rounded corners */
    border-radius: 8px;
    -webkit-border-radius: 8px;
    -moz-border-radisu: 8px;
    
    /* normal styles */
    border: 1px solid #ccc;
    font-family: sans-serif;
    padding: 12px;
    text-align: center;
    width: 48px;
}