#demoIzq { 
	border:1px solid; 
	width:33%; 
	background-color:#fff; 
	text-align:center;
	float:left; 
	height:200px;
	background-image:url(../img/pas1.jpg);
	background-position:left top;
	margin-left:2px;
	background-repeat:no-repeat;
}
#demoDer{ 
	border:1px solid; 
	width:33%; 
	background-color:#ff; 
	text-align:center;
	float:left; 
	height:200px;
	background-image:url(../img/pas2.jpg);
	background-position:left top;
	background-repeat:no-repeat;
}
#demoDer2 { 
	border:1px solid; 
	width:33%; 
	background-color:#fff; 
	text-align:center;
	float:left; 
	height:200px;
	background-image:url(../img/pas3.jpg);
	background-position:left top;
	background-repeat:no-repeat;
}

#demoDer {  }

select { width:220px; }