<!DOCTYPE html>
<html>
<head>
<style>
body {
height:100%;
margin:0;
padding:0;
font-family: Arial, Helvetica, sans-serif;
}
h2 {
font-size: 20px;
color: #000000;
}
#example {
visibility: hidden;
position: absolute;
left: 0;
top: 0;
width:100%;
height:100%;
text-align:center;
z-index: 1000;
}
#example div {
width:350px;
height: 80px;
margin: 100px auto;
background-color: #f2f2f2;
border-radius: 10px;
-webkit-border-radius: 10px;
-moz-border-radius: 10px;
border:1px solid #666666;
padding:15px;
text-align:center;
font-weight: bold;