    *margin-left: .3em;
    font-size: 0;
    white-space: nowrap;
  }
  
  .btn-group:first-child {
    *margin-left: 0;
  }
 
</s> remove   margin-left: 130px;
 </s> add   margin-left: 180px; </s> remove   *padding-left: 160px;
 </s> add   *padding-left: 180px; </s> remove   margin-left: 160px;
 </s> add   margin-left: 180px; </s> remove   width: 120px;
 </s> add   width: 160px;
  vertical-align: middle;
    *margin-left: .3em;
    font-size: 0;
    white-space: nowrap;
  vertical-align: middle;
  }
  
  .btn-group:first-child {
    *margin-left: 0;
  }
keep keep add keep keep keep keep keep
 [docs] Update Bootstrap to 2.1.1 
docs/static/css/bootstrap.css