768 B
		
	
	
	
	
			
		
		
	
	
			768 B
		
	
	
	
	
API
The distance to the bottom is set to
50pxby default, which is overridable.If you decide to use custom styles, please note the size limit: no more than
40px * 40px.
| Property | Description | Type | Default | 
|---|---|---|---|
| target | specifies the scrollable area dom node | () => HTMLElement | () => window | 
| visibilityHeight | the BackTopbutton will not show until the scroll height reaches this value | number | 400 | 
events
| Events Name | Description | Arguments | 
|---|---|---|
| click | a callback function, which can be executed when you click the button | Function |