div.container{
	width: 100%;
	height: auto;
}
header{
	color: white;
	font-size: 2.5em;
	font-family: Verdana,sans-serif;
	background-color: transparent;
	clear:left;
	text-align: center;
}
body{
	background-image: url("back.jpg");
}
ul{
	list-style-type: none;
	margin: 0;
	padding: 0;
	overflow: hidden;
	background-color: #333;
}
li{
	float: left;
}
li a{
	display: block;
	color: white;
	text-align: center;
	padding: 14px 16px;
	text-decoration: none;
}
li a:hover{
	background-color: #111;
}

div.mainbody{
	padding-top: 25px;
	padding-bottom: 25px;
	padding left: 25px;
	padding-right: 25px;
	border: 10px;
}

div.img{
	margin: 20px;
	border:1px solid #ccc;
	float: left;
	width: 400px;
}
div.img:hover{
	border: 1px solid #777;
}
div.img img{
	width: 100%;
	height: 300px;
}
div.desc{
	padding: 15px;
	text-align: center;
	font-family: Tahoma, sans-serif;
}

.clear{
	clear: both;
}

div.Introduction{	
	border: solid;
	border-width: medium;
}
h2{
	text-align: center;
	font-size: 1.98em;
	font-family: cursive; 
}
p{
	margin-left: 80px;
	margin-right: 80px;
	font-size: 1.2em;
	font-family: Courier;
}
div.try{
	border:auto;
	border-width: medium;
}
h3{
	font-size: 1em;
	font-family: verdana;
	text-align: center;
}
iframe{
 	margin-left: 415px;
 	
}