Index: wp-content/themes/twentyeleven/style.css
===================================================================
--- wp-content/themes/twentyeleven/style.css	(revision 22402)
+++ wp-content/themes/twentyeleven/style.css	(working copy)
@@ -856,7 +856,7 @@
 .entry-content img,
 .comment-content img,
 .widget img {
-	max-width: 97.5%; /* Fluid images for posts, comments, and widgets */
+	max-width: 100%; /* Fluid images for posts, comments, and widgets */
 }
 img[class*="align"],
 img[class*="wp-image-"],
@@ -942,6 +942,7 @@
 #content .gallery .gallery-icon img {/* Add fancy borders to all WordPress-added images but not things like badges and icons and the like */
 	border: 1px solid #ddd;
 	padding: 6px;
+	max-width: 97.5%;
 }
 .wp-caption img {
 	border-color: #eee;