JSFiddle - React, Tailwind, and code Playground

by khamer

HTML

<nav>
    <ul>
        <li>
            <a href="">One</a>
            <ul>
                <li>
                    <a href="">Two</a>
                </li>
                <li>
                    <a href="">Three</a>
                </li>
                <li>
                    <a href="">Four</a>
                </li>
                <li>
                    <a href="">Five</a>
                </li>
            </ul>
        </li>
        <li class="active">
            <a href="">Alpha</a>
            <ul>
                <li>
                    <a href="">Beta</a>
                </li>
                <li>
                    <a href="">Gamma</a>
                </li>
                <li>
                    <a href="">Delta</a>
                </li>
                <li>
                    <a href="">Epsilon</a>
                </li>
            </ul>
        </li>
        <li>
            <a href="">Red</a>
            <ul>
                <li>
                    <a href="">Orange</a>
                </li>
                <li>
                    <a href="">Yellow</a>
                </li>
                <li>
                    <a href="">Green</a>
                </li>
                <li>
                    <a href="">Blue</a>
                </li>
            </ul>
        </li>
    </ul>
</nav>

CSS

* {
    font-size: 16px;
    line-height: 1;
}
nav { background: #555; }
nav li { background: #955; }
nav li li { background: #595; }
nav:after {
    content: '';
    display: table;
    clear: both;
}
nav > ul {
    position: relative;
}
nav a {
    text-decoration: none;
    color: #fff;
}
nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
}
nav > ul > li {
    display: block;
    float: left;
    width: 100px;
    padding: .5em 1em;
}
nav li ul {
    display: none;
    position: absolute;
}
nav li:hover ul {
    display: block;
}

nav li.active ul {
    display: block;
    left: 0;
    right: 0;
    top: 2em;
}
nav li.active li {
    float: left;
    padding: .25em .5em;
}