.treegrid-indent {width:16px; height: 16px; display: inline-block; position: relative;}

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

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

.glyphicon-chevron-down:before {
    content: "\e5cf";
    font-family: 'Material Icons';
}

.glyphicon-chevron-right:before {
    content: "\e5cc";
    font-family: 'Material Icons';
}