FullScreen

by giacal

HTML

<div>CIAO</div>
<button>go fullscreen</button>

CSS

div:-webkit-full-screen{
    font-size:70px;
}

JavaScript

var button = document.querySelector("button"),
       div = document.querySelector("div");

button.addEventListener('click',goFullScreen, false);

function goFullScreen(){
    div.webkitRequestFullScreen();
}