element-ui/examples/docs/en-US/backtop.md

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2021-06-07 11:56:04 +08:00
## Backtop
A button to back to top
### Basic usage
Scroll down to see the bottom-right button.
:::demo
```html
<template>
Scroll down to see the bottom-right button.
<el-backtop target=".page-component__scroll .el-scrollbar__wrap"></el-backtop>
</template>
```
:::
### Customizations
Display area is 40px \* 40px.
:::demo
```html
<template>
Scroll down to see the bottom-right button.
<el-backtop target=".page-component__scroll .el-scrollbar__wrap" :bottom="100">
<div
style="{
height: 100%;
width: 100%;
background-color: #f2f5f6;
box-shadow: 0 0 6px rgba(0,0,0, .12);
text-align: center;
line-height: 40px;
color: #1989fa;
}"
>
UP
</div>
</el-backtop>
</template>
```
:::
### 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 |