# Single Month Header Render Hooks

In Multi-Month view, the month header is the title element above each month grid (e.g. "January 2025").

`singleMonthHeaderClass` - a [ClassName Input](classname-input.md)

`singleMonthHeaderInnerClass` - a [ClassName Input](classname-input.md) for the inner element, which may be a nav link


## Argument

When the above hooks are specified as a function in the form `function(info)`, the `info` is an object with the following properties:

- `date` - Date object representing the first day of the month
- `hasNavLink`
- `isSticky` - `true` when the header is rendered in a sticky position (e.g. pinned while scrolling)
- `isNarrow` - `true` when the header is rendered in a narrow layout
- `multiMonthColumns` - the number of month columns rendered per row. `0` until the layout has been measured