*		{
		outline: none;
		}
.header 	{
		display:		block;
		float:			left;
		width:			990px;
		height:			254px;
		background-color: 	#000000;
		background-image: 	url(../img/header.jpg);
		background-repeat:	no-repeat;
		
		}
		
.colonnaSX 	{
		display:		block;
		float:			left;
		width:			188px;
		height:			auto;

		}
		
.colonnaCX 	{
		display:		block;
		float:			left;
		width:			484px;
		height:			auto;
		padding: 		9px;

		}
		
.colonnaDX 	{
		display:		block;
		float:			left;
		width:			300px;
		height:			auto;

		}