Index: wp-content/themes/twentyten/style.css
===================================================================
--- wp-content/themes/twentyten/style.css	(revision 22166)
+++ wp-content/themes/twentyten/style.css	(working copy)
@@ -782,7 +782,8 @@
 img.size-full,
 img.size-large,
 img.size-medium,
-.attachment img {
+.attachment img,
+.widget-container img {
 	max-width: 100%; /* When images are too wide for containing element, force them to fit. */
 	height: auto; /* Override height to match resized width for correct aspect ratio. */
 }
@@ -1130,8 +1131,15 @@
 	display: none;
 }
 .widget-container {
+	word-wrap: break-word;
+	-webkit-hyphens: auto;
+	-moz-hyphens: auto;
+	hyphens: auto;
 	margin: 0 0 18px 0;
 }
+.widget-container .wp-caption img {
+	margin: auto;
+}
 .widget-title {
 	color: #222;
 	font-weight: bold;
Index: wp-content/themes/twentyeleven/style.css
===================================================================
--- wp-content/themes/twentyeleven/style.css	(revision 22166)
+++ wp-content/themes/twentyeleven/style.css	(working copy)
@@ -1752,6 +1752,10 @@
 	font-size: 12px;
 }
 .widget {
+	word-wrap: break-word;
+	-webkit-hyphens: auto;
+	-moz-hyphens: auto;
+	hyphens: auto;
 	clear: both;
 	margin: 0 0 2.2em;
 }