*
{
	padding:0px;
	margin:0px;
}
body
{
	background-color: #FFFFFF;
}
#principal
{
	width:90%;
	height:auto;
	margin:auto;
	
	
}
#cabecera1
{	
	float:left;
	width:60%;
	height:50px;
	font-weight:bold;
	color:blue;
	
	
}

#cabecera2
{
	
	font-family: helvetica;
	width:40%;
	height:50px;
	float:left;
	font-size:15px;
	text-align:right;
	
}
main
{
	margin-top:10px;
	width:100%;
	height:50px;
	background-color: #FFFFFF;	
}
header nav
{
	text-align: center;
	background-color: #000000;
}
header nav ul li
{
	display: inline-block;
	padding:10px;
}
header nav ul li a
{
	text-decoration: none;
	font-family: helvetica;
	font-size: 17px;
	color: silver;
}
header nav ul li a:hover
{
	color:white;
}
#contenido
{
	width:100%;
	height:480px;
	margin:auto;
	margin-top: 10px;
	margin-bottom:10px;

}



footer
{
	clear:both;
	width: 100%;
	height: 50px;
	background-color:#000000;
	text-align:center;
	color:silver;
	font-family:helvetica;
	font-size:12px;
	line-height:50px;
	padding-top:3px;
	box-sizing:border-box; -moz-box-sizing:border-box; /* Firefox */ 							    -webkit-box-sizing:border-box; /* Safari */
}
#slider
{
	margin-bottom:8px;
	margin-top:18px;
	width:100%;
	
	
}
#slider ul
{
	list-style:none;
	position:relative;
	height:160px;
	overflow:hidden;
}
#slider ul li
{
	display:none;
}
#slider ul li.primera
{
	display:block;
}
#slider ul li img
{
	position:absolute;
	top:0;
	left:0;
	width:100%;
	height: 100%;
}
.controles
{
	text-align:center;
	margin-top:15px;
	margin-bottom:15px;
}
.controles li
{
	background-color: red;
	margin-left:6px;
	border-radius: 50%;
	-webkit-border-radius: 50%;
	-moz-border-radius:50%;
	display: inline-block;
	height:12px;
	width:12px;
	cursor:pointer;
}
.controles .accion
{
	background-color: blue;
}

@media only screen and (max-width: 850px)
{
	#principal
	{
		width: 500px;
	}
	#slider
	{
		width:500px;
	}
}
@media only screen and (max-width: 500px)
{
	#principal
	{
		width: 100%;
	}
	#slider
	{
		width:100%;
	}
}