#presentacio #thumbs{
		float:left;
		
	}
	#presentacio #thumbs img{
	filter:alpha(opacity=50);
	-moz-opacity: 0.5;
	opacity: 0.5;
	-khtml-opacity: 0.5;
		width:60px;
		height:40px;
		float: left;
		//border:solid 1px red;
		margin:5px;
	}
	
	#presentacio #thumbs img:hover{
	filter:alpha(opacity=100); 
	-moz-opacity: 1.0; 
	opacity: 1.0;
	-khtml-opacity: 1.0;
	}
	
	#imatge_principal{
		float:left;
		margin:10px auto 0 auto;
		display:block !important;
	}
	#foto1{		display:block !important;
}