---
order: 1
title:
zh-CN: 自定义样式
en-US: Custom style
---
## zh-CN
可以自定义回到顶部按钮的样式,限制宽高:`40px * 40px`。
## en-US
You can customize the style of the button, just note the size limit: no more than `40px * 40px`.
```jsx
import { BackTop } from 'antd';
ReactDOM.render(
UP
Scroll down to see the bottom-right
blue
button.
,
mountNode,
);
```
```css
#components-back-top-demo-custom .ant-back-top {
bottom: 100px;
}
#components-back-top-demo-custom .ant-back-top-inner {
height: 40px;
width: 40px;
line-height: 40px;
border-radius: 4px;
background-color: #1088e9;
color: #fff;
text-align: center;
font-size: 20px;
}
```