fix tabs jitter bug when there is no active class

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: Fri Sep 16 09:47:29 PDT 2011
+ * Date: Fri Sep 16 10:13:51 PDT 2011
  */
 /* Reset.less
  * Props to Eric Meyer (meyerweb.com) for his CSS reset file. We're using an adapted version here	that cuts out some of the reset HTML elements we will never need here (i.e., dfn, samp, etc).
@@ -1591,22 +1591,23 @@ a.menu:after, .dropdown-toggle:after {
 .tabs > li > a {
   margin-right: 2px;
   padding: 0 15px;
-  line-height: 35px;
+  line-height: 36px;
+  border: 1px solid transparent;
   -webkit-border-radius: 4px 4px 0 0;
   -moz-border-radius: 4px 4px 0 0;
   border-radius: 4px 4px 0 0;
 }
 .tabs > li > a:hover {
-  background-color: #eee;
-  border-bottom: 1px solid #ddd;
   text-decoration: none;
+  background-color: #eee;
+  border-color: #eee #eee #ddd;
 }
 .tabs > li.active > a {
-  background-color: #ffffff;
   padding: 0 14px;
-  border: 1px solid #ddd;
-  border-bottom: 0;
   color: #808080;
+  background-color: #ffffff;
+  border: 1px solid #ddd;
+  border-bottom-color: transparent;
 }
 .tabs .menu-dropdown, .tabs .dropdown-menu {
   top: 35px;

docs/index.html

@@ -1367,7 +1367,7 @@ <h2>Tabs and pills</h2>
     </div>
     <div class="span12">
       <ul class="tabs">
-        <li class="active"><a href="#">Home</a></li>
+        <li class=""><a href="#">Home</a></li>
         <li><a href="#">Profile</a></li>
         <li><a href="#">Messages</a></li>
         <li><a href="#">Settings</a></li>

lib/patterns.less

@@ -342,22 +342,22 @@ a.menu:after,
     position: relative; // For the dropdowns mostly
     top: 1px;
     > a {
-      margin-right: 2px;
       padding: 0 15px;
-      line-height: (@baseline * 2) - 1;
+      margin-right: 2px;
+      line-height: @baseline * 2;
+      border: 1px solid transparent;
       .border-radius(4px 4px 0 0);
       &:hover {
-        background-color: #eee;
-        border-bottom: 1px solid #ddd;
         text-decoration: none;
+        background-color: #eee;
+        border-color: #eee #eee #ddd;
       }
     }
     &.active > a {
+      color: @gray;
       background-color: @white;
-      padding: 0 14px;
       border: 1px solid #ddd;
-      border-bottom: 0;
-      color: @gray;
+      border-bottom-color: transparent;
     }
   }
   // first one for backwards compatibility