table.treetable span.indenter{
  /* Force content-box box model for indenter (Bootstrap compatibility) */box-sizing:content-box;display:inline-block;margin:0;padding:0;text-align:right;
  /* Disable text selection of nodes (for better D&D UX) */user-select:none;-khtml-user-select:none;-moz-user-select:none;-o-user-select:none;-webkit-user-select:none;width:19px}table.treetable span.indenter a{background-position:0;background-repeat:no-repeat;display:inline-block;text-decoration:none;width:19px}