Index: wp-admin/css/ie.dev.css
===================================================================
--- wp-admin/css/ie.dev.css	(revision 21268)
+++ wp-admin/css/ie.dev.css	(working copy)
@@ -258,7 +258,6 @@
 .widgets-sortables,
 #dragHelper,
 .widget .widget-top,
-.widget,
 .widget-control-actions,
 .tagchecklist,
 #col-container,
@@ -379,6 +378,11 @@
 	position: relative;
 }
 
+.inactive-sidebar .widget {
+	display: block;
+	float: left;
+}
+
 #wpcontent .button-primary-disabled {
 	color: #9FD0D5;
 	background: #298CBA;
Index: wp-admin/css/wp-admin.dev.css
===================================================================
--- wp-admin/css/wp-admin.dev.css	(revision 21268)
+++ wp-admin/css/wp-admin.dev.css	(working copy)
@@ -7756,7 +7756,7 @@
 
 .inactive-sidebar .widget {
 	margin: 0 10px 20px;
-	float: left;
+	display: inline-block;
 }
 
 div.sidebar-name h3 {
@@ -7918,6 +7918,7 @@
 
 .widget-title h4 {
 	margin: 0;
+	padding-bottom: 0.2em;
 	line-height: 1;
 	overflow: hidden;
 	white-space: nowrap;
Index: wp-admin/widgets.php
===================================================================
--- wp-admin/widgets.php	(revision 21268)
+++ wp-admin/widgets.php	(working copy)
@@ -365,7 +365,7 @@
 			</div>
 			<div class="widget-holder inactive">
 				<?php wp_list_widget_controls( $registered_sidebar['id'] ); ?>
-				<br class="clear" />
+				<div class="clear"></div>
 			</div>
 		</div>
 <?php