    background-color: #e5e5e5;
  }
  
  .navbar .nav li.dropdown > .dropdown-toggle .caret {
    border-top-color: #555555;
    border-bottom-color: #555555;
  }
  
  .navbar .nav li.dropdown.open > .dropdown-toggle .caret,
  .navbar .nav li.dropdown.active > .dropdown-toggle .caret,
  .navbar .nav li.dropdown.open.active > .dropdown-toggle .caret {
 
</s> remove   color: #555555;
 </s> add   color: #777777; </s> remove     color: #555555;
 </s> add     color: #777777; </s> remove .navbar .btn-group .btn {
  margin: 0;
 </s> add .navbar .btn-group .btn,
.navbar .input-prepend .btn,
.navbar .input-append .btn {
  margin-top: 0;
  border-top-color: #777777;
  border-bottom-color: #777777;
    background-color: #e5e5e5;
  }
  
  .navbar .nav li.dropdown > .dropdown-toggle .caret {
  border-top-color: #777777;
  border-bottom-color: #777777;
  border-top-color: #777777;
  border-bottom-color: #777777;
  }
  
  .navbar .nav li.dropdown.open > .dropdown-toggle .caret,
  .navbar .nav li.dropdown.active > .dropdown-toggle .caret,
  .navbar .nav li.dropdown.open.active > .dropdown-toggle .caret {
keep keep keep keep replace replace keep keep keep keep keep
 [docs] Update Bootstrap to 2.1.1 
docs/static/css/bootstrap.css