# lightbox_additional_height

:::warning
The property is deprecated.
:::

### Description

@short: Increases the height of the lightbox

@signature: lightbox_additional_height: number

### Example

~~~jsx
gantt.config.lightbox_additional_height = 90;
~~~

**Default value:** 75

### Details

The **lightbox_additional_height** sums 2 values: the height of the lightbox's header and the height of the lighbox's footer.

### Change log
- Deprecated since v9.0