another better way to hide slides

themes/ribbon/styles/style.css

@@ -180,9 +180,6 @@ BODY {
 	}
 
 /* Shout */
-.slide.shout {
-	z-index:1;
-	}
 .slide.shout SECTION:before {
 	display:none;
 	}
@@ -299,12 +296,10 @@ BODY {
 		}
 	.full .slide {
 		position:absolute;
-		top:-150%;
-		left:-150%;
+		visibility:hidden;
 		}
 	.full .slide:target {
-		top:0;
-		left:0;
+		visibility:visible;
 		}
 		.full .slide:after {
 			position:absolute;