      float: right;
  }
  
  .nav-tabs li a {
      margin-right: 0;
  }
  
  .nav-tabs > .active > a {
      background: #f5f5f5;
  }
 
</s> remove     background: #f5f5f5;
 </s> add   background: #F5F5F5; </s> remove     float: right;
 </s> add   float: right; </s> remove     border: 0;
 </s> add   border: 0; </s> remove     background: #f5f5f5;
}

.tabbable.first-tab-active .tab-content
{
    border-top-right-radius: 0;
 </s> add   background: #F5F5F5; </s> remove .navbar .navbar-inner .dropdown-menu li a, .navbar .navbar-inner .dropdown-menu li{
 color: #A30000;
 </s> add .navbar .navbar-inner .dropdown-menu li a, .navbar .navbar-inner .dropdown-menu li {
  color: #A30000;
  margin-right: 0;
      float: right;
  }
  
  .nav-tabs li a {
  margin-right: 0;
  }
  
  .nav-tabs > .active > a {
      background: #f5f5f5;
  }
keep keep keep keep replace keep keep keep keep keep
 Fixed the issue with the non-draggable horizontal scrollbar 
rest_framework/static/rest_framework/css/bootstrap-tweaks.css