body{
	background-image: url("background.jpg");
	background-size:auto;
	background-position: center;
}

ul{
	text-align: center;
	list-style-type: none;
	position: fixed;
	margin: 0;
	padding: 0;
	overflow: hidden;
}
li{
	float:left;
	padding:20px;
	background-color: black;	
}

.active {
	background-color: blue;
}
li a{
	color:white;
	display:block;
	text-decoration: none;
}

div.img {
    margin-top: 200px;
    margin-left: 90px;
    border: 1px solid #ccc;
    float: left;
    width: 250px;
    margin-right: 40px;

}

div.img img {
    width: 100%;
    height: auto;
}

div.desc {
    padding: 15px;
    text-align: center;
    color:black;
}