# Backtop A button to back to top ## Basic usage Scroll down to see the bottom-right button. :::demo backtop/basic ::: ## Customizations Display area is 40px \* 40px. :::demo backtop/custom ::: ## Attributes | Attribute | Description | Type | Accepted Values | Default | | ----------------- | ------------------------------------------------------------------- | ------ | --------------- | ------- | | target | the target to trigger scroll | string | | | | visibility-height | the button will not show until the scroll height reaches this value | number | | 200 | | right | right distance | number | | 40 | | bottom | bottom distance | number | | 40 | ## Events | Event Name | Description | Parameters | | ---------- | ------------------- | ----------- | | click | triggers when click | click event | ## Slots | Name | Description | | ---- | ------------------------- | | — | customize default content |