JSFiddle - React, Tailwind, and code Playground

by David Thomas

HTML

<nav id="nav">
    <h2>This would be the 'navigation' element.</h2>
</nav>
<a href="#nav">show navigation</a>
<a href="#">hide navigation</a>

CSS

nav {
    height: 0;
    overflow: hidden;
    -moz-transition: all 1s linear;
    -ms-transition: all 1s linear;
    -o-transition: all 1s linear;
    -webkit-transition: all 1s linear;
    transition: all 1s linear;
}
nav:target {
    height: 4em;
    color: #000;
    background-color: #ffa;
    -moz-transition: all 1s linear;
    -ms-transition: all 1s linear;
    -o-transition: all 1s linear;
    -webkit-transition: all 1s linear;
    transition: all 1s linear;
}