JSFiddle - React, Tailwind, and code Playground

HTML

<body>
    <nav>
        <ul>
            <li>1111</li>
            <li>2222</li>
            <li>3333</li>
            <li>4444</li>
        </ul>
    </nav>
</body>

CSS

nav {
    color: #000
    position: fixed;
    z-index: 9999;
    right: 0;
}
nav ul li {
    display: inline-block;
    background-color: rgba(0,125,125,0.5);
    margin: 0;
    padding: 0;
    border: none;
    outline: 0
}