JSFiddle - React, Tailwind, and code Playground

HTML

<iframe width="420" height="315" src="//www.youtube.com/embed/okqEVeNqBhc?autoplay=1" frameborder="0" allowfullscreen></iframe>
<marquee>lololololololololol<marquee>

CSS

body{
    background-color: black;
    color: #fff; 
    font-family: "Comic Sans MS";
    font-size: 72px;
}

JavaScript

alert("LOL YOU CLICKED IT!");
alert("CONGRATULATIONS! YOU'VE WON!");