> ## Documentation Index
> Fetch the complete documentation index at: https://docs.usertour.io/llms.txt
> Use this file to discover all available pages before exploring further.

# setBaseZIndex()

> Set the base z-index for Usertour floating elements

The `setBaseZIndex()` method sets the minimum z-index value for all Usertour floating elements. By default, Usertour places its elements at or slightly above z-index 1000000. Due to layer stacking, some elements may have z-index values several thousand units higher.

> **Note**: You don't always need to change the base z-index. For specific components like launchers, checklists, and the resource center, you can adjust their individual z-index values through:
>
> * Launchers: Advanced settings
> * Checklists and Resource Center: Theme settings

## Parameters

<ParamField path="baseZIndex" type="number" required>
  The minimum z-index value for Usertour floating elements. Must be higher than your app's highest z-index to ensure Usertour elements appear above your content.
</ParamField>

## Returns

A `Promise` that resolves when the z-index is updated.

## Example

```javascript theme={null}
// Set a higher base z-index for Usertour elements
usertour.setBaseZIndex(2000000);
```

## Notes

* Default z-index is 1000000
* Some elements may have higher z-index values due to layer stacking
* Use this method if Usertour elements appear below your app's content
* Consider adjusting individual component z-index values first
* Higher z-index values may affect performance