Same fix for the navbar example of sticky footer

examples/sticky-footer-navbar/sticky-footer-navbar.css

@@ -10,8 +10,7 @@ body {
 /* Wrapper for page content to push down footer */
 #wrap {
   min-height: 100%;
-  height: auto !important;
-  height: 100%;
+  height: auto;
   /* Negative indent footer by its height */
   margin: 0 auto -60px;
   /* Pad bottom by footer height */
@@ -43,4 +42,4 @@ body {
 
 code {
   font-size: 80%;
-}
\ No newline at end of file
+}