Index: wp-content/themes/twentyeleven/style.css
===================================================================
--- wp-content/themes/twentyeleven/style.css	(revision 18052)
+++ wp-content/themes/twentyeleven/style.css	(working copy)
@@ -1495,6 +1495,39 @@
     display: block;
     margin: 0 auto 1.625em;
 }
+.gallery-columns-4 .gallery-item {
+	width:23% !important;
+	padding-right:2% !important;
+}
+.gallery-columns-5 .gallery-item {
+	width:18% !important;
+	padding-right:2% !important;
+}
+.gallery-columns-6 .gallery-item {
+	width:14% !important;
+	padding-right:2% !important;
+}
+.gallery-columns-7 .gallery-item {
+	width:12% !important;
+	padding-right:2% !important;
+}
+.gallery-columns-8 .gallery-item {
+	width:10% !important;
+	padding-right:2% !important;
+}
+.gallery-columns-9 .gallery-item {
+	width:9% !important;
+	padding-right:2% !important;
+}
+.gallery-columns-4 .gallery-item img,
+.gallery-columns-5 .gallery-item img,
+.gallery-columns-6 .gallery-item img,
+.gallery-columns-7 .gallery-item img,
+.gallery-columns-8 .gallery-item img,
+.gallery-columns-9 .gallery-item img {
+	width:100% !important;
+	height:auto !important;
+}
 
 
 /* =Navigation
@@ -2185,7 +2218,25 @@
 		position: absolute;
 		top: 2.2em;
 	}
+	.gallery-columns-3 .gallery-item {
+		width:31% !important;
+		padding-right:2% !important;
+	}
+	.gallery-columns-3 .gallery-item img {
+		width:100% !important;
+		height:auto !important;
+	}
 }
+@media (max-width: 450px) {
+	.gallery-columns-2 .gallery-item {
+		width:45% !important;
+		padding-right:4% !important;
+	}
+	.gallery-columns-2 .gallery-item img {
+		width:100% !important;
+		height:auto !important;
+	}
+}
 @media only screen and (min-device-width: 320px) and (max-device-width: 480px) {
 	body {
 		padding: 0 .5em;