diff --git src/wp-admin/css/common.css src/wp-admin/css/common.css
index c52e183..685bced 100644
--- src/wp-admin/css/common.css
+++ src/wp-admin/css/common.css
@@ -440,6 +440,11 @@ code {
 	width: 100%;
 	clear: both;
 	margin: 0;
+	-moz-border-radius: 4px;
+	-webkit-border-radius: 4px;
+	background-clip: padding-box;
+	-webkit-background-clip: padding-box; 
+	-moz-background-clip: padding; 
 }
 
 .widefat * {
@@ -1031,6 +1036,12 @@ form.upgrade .hint {
 	border-top: none;
 	-webkit-box-shadow: 0 1px 0 rgba(0,0,0,.025);
 	box-shadow: 0 1px 0 rgba(0,0,0,.025);
+	border-radius: 4px;
+	-moz-border-radius: 4px;
+	-webkit-border-radius: 4px;
+	background-clip: padding-box;
+	-webkit-background-clip: padding-box; 
+	-moz-background-clip: padding; 
 }
 
 #screen-options-link-wrap,
diff --git src/wp-admin/css/edit.css src/wp-admin/css/edit.css
index bd7f17a..242f168 100644
--- src/wp-admin/css/edit.css
+++ src/wp-admin/css/edit.css
@@ -179,6 +179,12 @@ stray rule may actually be compensated for elsewhere. */
 	-webkit-box-shadow: 0 1px 1px rgba(0,0,0,0.04);
 	box-shadow: 0 1px 1px rgba(0,0,0,0.04);
 	background: #fff;
+	border-radius: 4px;
+	-moz-border-radius: 4px;
+	-webkit-border-radius: 4px;
+	background-clip: padding-box;
+	-webkit-background-clip: padding-box; 
+	-moz-background-clip: padding; 
 }
 
 #trackback_url {
diff --git src/wp-admin/css/list-tables.css src/wp-admin/css/list-tables.css
index 62fc5b1..ee23d5f 100644
--- src/wp-admin/css/list-tables.css
+++ src/wp-admin/css/list-tables.css
@@ -301,6 +301,16 @@ table.fixed {
 	width: 80px;
 }
 
+.wp-list-table,
+.comments {
+	border-radius: 4px;
+	-moz-border-radius: 4px;
+	-webkit-border-radius: 4px;
+	background-clip: padding-box;
+	-webkit-background-clip: padding-box; 
+	-moz-background-clip: padding; 
+}
+
 /* @todo: pick a consistent list table selector */
 .wp-list-table a {
 	-webkit-transition: none;
diff --git src/wp-admin/index.php src/wp-admin/index.php
index 3bd4c7c..1577f9a 100644
--- src/wp-admin/index.php
+++ src/wp-admin/index.php
@@ -96,7 +96,7 @@ include( ABSPATH . 'wp-admin/admin-header.php' );
 	<h2><?php echo esc_html( $title ); ?></h2>
 
 <?php if ( has_action( 'welcome_panel' ) && current_user_can( 'edit_theme_options' ) ) :
-	$classes = 'welcome-panel';
+	$classes = 'welcome-panel postbox';
 
 	$option = get_user_meta( get_current_user_id(), 'show_welcome_panel', true );
 	// 0 = hide, 1 = toggled to show or single site creator, 2 = multisite site owner