How to apply the styles for Kendo treeview parent node only

[ayash]

I have kendo tree-view in my application,I want to apply the styles for kendo tree-view parent node only.How to apply the styles like Font weight-bold for the parent node of tree-view?My treeview code is\[code\] var tree= $("#treeview").kendoTreeView({checkboxes: { checkChildren: true},dataSource: [{ id: 2, text: "select all", expanded: true, items: [ { id: 3, text: "ABH" }, { id: 4, text: "VFG" }, { id: 5, text: "VFGT" }, { id: 6, text: "GTYUJ" }, { id: 7, text: "GHJ" } ]}] }).data("kendoTreeView");\[/code\]here is the JSfiddle.