Learn_HTML_BigThreeDEMO

for Learning book demo use

by Loki Jiang

HTML

<h1>HELLO</h1>
<h1>WORLD</h1>
<h1>HAVE</h1>
<h1>GOOD</h1>
<h1>DAYS</h1>

CSS

h1{
  color:white;
  text-align:center;
  padding:10px;
  border:1px #eee solid;
}

JavaScript

setInterval(function() {
        r = Math.round(Math.random() * 50)+50;
        g = Math.round(Math.random() * 50)+50;
        b = Math.round(Math.random() * 50)+50;
        $('body').css('background-color', 'rgb(' + r + ',' + g + ',' + b + ')');
    }, 1000);