html, body {
padding:0;
margin:0;
height:100%;
}

body { 
background: #000; 
} 

#back{
height:100%;
width:100%;
background-image:url(img/back.gif)repeat x;
text-align:center;
}

#logo{
margin-left: auto;
margin-right: auto;
}

a {
text-decoration:none;
}

img {
border:none;
}

#bar{
margin-left: auto;
margin-right: auto;
width:400px;
height:50px;
}

#botonera{
	margin-left: auto;
	margin-right: auto;
	float:right;
	width:400px;
}

#info {
background-image:url(../img/info.jpg);
}

ul {  
	list-style:none;
	margin:10px 0 0 0;
	padding:0;
}
ul li {
	padding:0;
	float:left;
}
ul li a {
	display:block;
	width:400px;
	height:50px;
	text-decoration:none;
}

ul li a:hover {
background-position:bottom;
}

ul li a span {
	display:none;
}