html{
	background: url(images/hp2.jpg);
	background repeat: no-repeat; 
	background-attachment: fixed;
  	-webkit-background-size: cover;
  	-moz-background-size: cover;
  	-o-background-size: cover;
	background-size: cover;
}

body{
	text-align: left;
	margin:50px;

}

.titol{
	margin-left:550px;
}
nav {
	margin-top: 20px auto; 
	text-align: center;
}

nav ul ul {
	display: none;
}

nav ul li:hover > ul {
	display: block;
}


nav ul {
	background: #efefef; 
	background: linear-gradient(top, #efefef 0%, #bbbbbb 100%);  
	background: -moz-linear-gradient(top, #efefef 0%, #bbbbbb 100%); 
	background: -webkit-linear-gradient(top, #efefef 0%,#bbbbbb 100%); 
	box-shadow: 0px 0px 9px rgba(0,0,0,0.15);
	padding: 0 20px;
	border-radius: 10px;  
	list-style: none;
	position: relative;
	display: inline-table;
}
nav ul:after {
	content: ""; clear: both; display: block;
}

nav ul li {
	float: left;
}
nav ul li:hover {
	background: #4b545f;
	background: linear-gradient(top, #4f5964 0%, #5f6975 40%);
	background: -moz-linear-gradient(top, #4f5964 0%, #5f6975 40%);
	background: -webkit-linear-gradient(top, #4f5964 0%,#5f6975 40%);
}
nav ul li:hover a {
color: #fff;
}
		
nav ul li a {
	display: block; padding: 25px 40px;
	font-family:Arial,Verdana,Helvitica,sans-serif;
	color: #1C1C1C; text-decoration: none;font-weight: bold;
}
			
		
nav ul ul {
	background: #5f6975; border-radius: 0px; padding: 0;
	position: absolute; top: 100%;
}

nav ul ul li {
	float: none; 
	border-top: 1px solid #6b727c;
	border-bottom: 1px solid #575f6a; position: relative;
}

nav ul ul li a {
	padding: 15px 40px;
	color: #fff;
}	

nav ul ul li a:hover {
	background: #4b545f;
}

nav ul ul ul {
	position: absolute; left: 100%; top:0;
}
		
h3{
	font-family: helvetica, sans-serif;
	text-align:left;
	color:#FD0000;
	margin-top: 150px;
	margin-left:70px;
	font-size:38px;
}
p{
	font-size: 18px;
	padding: 15px;
	margin-left:70px;
	text-align:justify;
	width:50%;
	background-color: #060606;
	font-weight: bold;
	color: #f9f9f9;
	opacity:0.7;
	border-bottom: 4px solid #FFFFFF;
	border-top: 4px solid #FFFFFF;
}

.screen {
 overflow:hidden;
 width:320px;
 height:568px;
border-radius: 30px 30px 30px 30px;
display:block;
margin-left:270px;
margin-right:auto;
}
.img1 {
 position:relative;
 float:left;
 height:568px;
 width:700px;
 left:0;
 -webkit-transition:all 0.5s ease-in-out;
}
.img1 img {
 position:relative;
 float:left;
 height:568px;
 width:320px;
border-radius: 30px 30px 30px 30px;
}
.screen:hover .img1 {
 left:-320px;
}

.img2 {
 position:relative;
 float:left;
 height:568px;
 width:700px;
 left:0;
 -webkit-transition:all 0.5s ease-in-out;
}
.img2 img {
 position:relative;
 float:left;
 height:568px;
 width:320px;
border-radius: 30px 30px 30px 30px;
}
.screen:hover .img2 {
 left:-320px;
}
.img3 {
 position:relative;
 float:left;
 height:568px;
 width:700px;
 left:0;
 -webkit-transition:all 0.5s ease-in-out;
}
.img3 img {
 position:relative;
 float:left;
 height:568px;
 width:320px;
border-radius: 30px 30px 30px 30px;
}
.screen:hover .img3 {
 left:-320px;
}