JSFiddle - React, Tailwind, and code Playground

HTML

<div id= "sidebar">
    <h3>Navigation Links</h3>
    <div id= "sidelinks">
        <ul>
            <li><a href= "#">Home</a></li>
            <li><a href= "#">Biography</a></li>
        </ul>
    </div>
</div>

CSS

#sidebar {
    background: #464646;
    width: 250px;
    height: 1000px;
    margin-left: 50px;
    border-radius: 15px;
}
h3 {
    font-family: 'Coda', cursive;
    color: white;
    background: #6B6B6B;
    font-size: 24px;
    text-align: center;
    padding: 15px 0 8px 0;
    border-top-left-radius: 15px;
    border-top-right-radius: 15px;
}
#sidelinks {
    font-family: 'Armata', sans-serif;
    font-size: 25px;
    text-decoration: none;
    color: white;
    background-color: #4D4D4D;
    padding: 10px;
    position: relative;
}
#sidelinks ul {
    list-style:none;
    padding:0;
    margin:0;
}
#sidelinks a {
    color:black;
    text-decoration:none;
}