body { max-width: 1024px; }
#navegaPortfolio ul li#prev { opacity: 1; }
#navegaPortfolio ul li#next { opacity: 1; }  

@media only screen and (orientation:portrait) {
   /* portrait styles here */ 
	html, body {
		width:768px;
	}
	.menu {
		left:457px;
	}
	.menuTopo {
	  width: 699px;
	}
	.menuTopo LI {
	  width: 91px;
	}
}