.treegrid-indent {width:10px; height: 10px; display: inline-block; position: relative;}

.treegrid-expander {width:16px; height: 12px; margin-left:0px;display: inline-block; position: relative; cursor: pointer;}

.treegrid-expander-expanded{margin-top:0px;background-image: url(../img/collapse.png); }
.treegrid-expander-collapsed{background-image: url(../img/expand.png);}