<!DOCTYPE html>
<html>
<title>W3.CSS</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="http://www.w3schools.com/lib/w3.css">
<style>
.mySlides {display:none;}
</style>
<body>
<h2 class="w3-center">Automatic Slideshow</h2>
<div class="w3-content w3-section" style="max-width:500px">
<img class="mySlides" src="img_la.jpg" style="width:100%">
<img class="mySlides" src="img_ny.jpg" style="width:100%">
<img class="mySlides" src="img_chicago.jpg" style="width:100%">
</div>
<script>
var myIndex = 0;
carousel();
function carousel() {
var i;
var x = document.getElementsByClassName("SlideShow");
for (i = 0; i < x.length; i++) {
x[i].style.display = "none";
}
myIndex++;
if (myIndex > x.length) {myIndex = 1}
x[myIndex-1].style.display = "block";
setTimeout(carousel, 2000); // Change image every 2 seconds
}
</script>
</body>
</html>