.container{
	position:relative;
	margin-left:auto;
	margin-right:auto;
	width:960px;
}

.columna{
	position:relative;
	display:inline;
	float:left;
	overflow:visible;
	zoom:1;
	height:auto;
	margin:0;
	padding:0;
	border:0;
	
}

.clear {
	clear:both;
	display:block;
	overflow:hidden;
	visibility:hidden;
	width:0;
	height:0
}
.c960{
	width:960px;
}
.c720{
	width:720px;
}
.c240{
	width:240px;
}
.nomargin{
	margin:0;
}