# Back Top
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It helps you back to where you were. However, time never goes back.
## Demos
Scroll down to see demos work.

```demo
basic
visibility-height
change-position
target-container-selector
```

## Props
|Name|Type|Default|Description|
|-|-|-|-|
|theme|`'light' \| 'dark' \| null`|`null`||
|target|`() => HTMLElement`|a function that returns the nearest scrollable ascendant element||
|right|`number \| string`|`40`||
|bottom|`number \| string`|`40`||
|visibility-height|`number`|`180`||
|themed-style|`{ [themeName: string]: Object } \| null`|`null`||

## Events
|Name|Parameters|Description|
|-|-|-|
|show|`()`||
|hide|`()`||