Create treeview css

build/less/treeview.less

@@ -0,0 +1,30 @@
+// Tree view menu
+.treeview-menu {
+	display: none;
+	list-style: none;
+	padding: 0;
+	margin: 0;
+	padding-left: 5px;
+	.treeview-menu {
+	  padding-left: 20px;
+	}
+	> li {
+	  margin: 0;
+	  > a {
+	    padding: 5px 5px 5px 15px;
+	    display: block;
+	    font-size: 14px;
+	    > .fa,
+	    > .glyphicon,
+	    > .ion {
+	      width: 20px;
+	    }
+	    > .pull-right-container > .fa-angle-left,
+	    > .pull-right-container > .fa-angle-down,
+	    > .fa-angle-left,
+	    > .fa-angle-down {
+	      width: auto;
+	    }
+	  }
+	}
+}