JSFiddle - React, Tailwind, and code Playground

HTML

<nav>
    <ul>
        <li><a href="#">home</a></li>
        <li><a href="#">about</a></li>
        <li><a href="#">fun stuff</a></li>
    </ul>
</nav>

CSS

nav{
	width:500px;
	background-color: #33363b;
	border-radius: 10px;
	margin:1% auto;
	overflow: hidden;
	box-shadow:1em .7em 1em #737985;
}

nav ul li{
	background-color: white;
	text-align: center;
	float: left;
	margin:1% 0 4% 1%;
	width:140px;
	list-style: none;
	border-radius: 10px;
	padding: 2% 0 2% 0;
	-webkit-transition: all .5s ease-in-out; 
}

nav ul a{
	text-decoration: none;
	color:#ec202b;
}

nav ul li:hover{
	background-color: #ec202b;
	cursor: pointer;
	color:white;
}