columns.headerAttributes Object

The HTML attributes of the table header cell (<th>) that is rendered for the column.

Quote the HTML attributes which are JavaScript keywords (for example, class).

Example - specifyinging column header HTML attributes

<div id="gantt"></div>
<script>
$("#gantt").kendoGantt({
  dataSource: [
    {
      id: 1,
      orderId: 0,
      parentId: null,
      title: "Task1",
      start: new Date("2014/6/17 9:00"),
      end: new Date("2014/6/17 11:00")
    },
    {
      id: 2,
      orderId: 1,
      parentId: null,
      title: "Task2",
      start: new Date("2014/6/17 12:00"),
      end: new Date("2014/6/17 14:00")
    },
    {
      id: 3,
      orderId: 2,
      parentId: null,
      title: "Task3",
      start: new Date("2014/6/17 13:00"),
      end: new Date("2014/6/17 15:00")
    }

  ],
  dependencies: [
    {
      predecessorId: 1,
      successorId: 2,
      type: 1
    }
  ],
  columns: [
    {
      field: "start",
      title: "Start Time",
      headerAttributes: {
        "class": "name-header",
        style: "text-align: right"
      }
    },
    { field: "end", title: "End Time" }
  ]
});
</script>