Index: wp-admin/nav-menus.php
===================================================================
--- wp-admin/nav-menus.php	(revision 14287)
+++ wp-admin/nav-menus.php	(working copy)
@@ -412,11 +412,13 @@
 								?>
 								</ul>
 							<?php elseif ( empty($nav_menu_selected_id) ):
+								echo '<div class="post-body-plain">';
 								echo '<p>' . __('To create your first custom menu, give it a name above, then choose items like pages, categories or custom links from the left column to add to this menu.') . '</p>';
 								echo '<p>' . __('After you have added your items, drag and drop to put them in the order you want, and click each item to reveal additional configuration options.') . '</p>';
 								echo '<p>' . __('When you are finished building your custom menu, make sure you click the Save Menu button above.') . '</p>';
 								echo '<p>' . __('You can create multiple menus. You can also display custom menus using the new "Custom Menu" widget.') . '</p>';
 								echo '<p>' . __('For more information on this feature, see the <a href="codex link">Custom Menus</a> article in the Codex.') . '</p>';
+								echo '</div>';
 							endif; ?>
 							<br class="clear" />
 						</div><!-- /#post-body-content-->
Index: wp-admin/css/nav-menu.dev.css
===================================================================
--- wp-admin/css/nav-menu.dev.css	(revision 14287)
+++ wp-admin/css/nav-menu.dev.css	(working copy)
@@ -78,6 +78,10 @@
 		-khtml-border-bottom-right-radius: 6px;
 		border-bottom-right-radius: 6px;
 	}
+	
+	.post-body-plain {
+		padding: 10px 10px 0 0;
+	}
 
 	#menu-management .menu-add-new abbr {
 		font-weight:bold;