JSFiddle - React, Tailwind, and code Playground

by Sub Lines

HTML

<div id="fucksafari">Web Developers hate Safari</div>

CSS

#fucksafari{
    width: 400px;
    height: 200px;
    background: rgba(0,0,0,0.8);
    color: white;
    padding: 10px;
    -moz-animation: fuckyourbrowser 1s 1.5s 1  forwards;
    position: absolute; 
    top: -50px;
}

@-moz-keyframes fuckyourbrowser{
0% {top:-50px}
100% {top:50px}
}