update comment on select bg bug and confirmed it was fixed, scoped responsive .span* to .row

bootstrap.css

@@ -6,7 +6,7 @@
  * http://www.apache.org/licenses/LICENSE-2.0
  *
  * Designed and built with all the love in the world @twitter by @mdo and @fat.
- * Date: Wed Dec 21 18:38:56 CST 2011
+ * Date: Wed Dec 21 19:30:30 CST 2011
  */
 html, body {
   margin: 0;
@@ -2695,7 +2695,7 @@ a.thumbnail:hover {
   .row {
     margin-left: 0;
   }
-  [class*="span"] {
+  .row > [class*="span"] {
     float: none;
     display: block;
     width: auto;