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---
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order: 1
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title:
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zh-CN: 自定义样式
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en-US: Custom style
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---
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## zh-CN
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可以自定义置顶按钮的样式，限制宽高：`40px * 40px`。
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## en-US
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You can customize the style of the button, just note the size limit: no more than `40px * 40px`.
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````jsx
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import { BackTop } from 'antd';
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const style = {
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height: 40,
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width: 40,
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lineHeight: '40px',
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borderRadius: 4,
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backgroundColor: '#57c5f7',
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color: '#fff',
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textAlign: 'center',
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fontSize: 20,
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};
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ReactDOM.render(
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<div>
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<BackTop style={{ bottom: 100 }}>
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<div style={style}>UP</div>
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</BackTop>
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向下滚动后，见右下角蓝色按钮
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</div>
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, mountNode);
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````
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