| ## zh-CN | |
| 可以自定义回到顶部按钮的样式，限制宽高：`40px * 40px`。 | |
| > 注意：`BackTop` 需要一个可接受 `onClick` 事件的元素作为 `children`。 如果您直接将文本作为子项放置，则该组件将无法正常运行。 | |
| ## en-US | |
| You can customize the style of the button, just note the size limit: no more than `40px * 40px`. | |
| > Note: `BackTop` expects a element could accept `onClick` property as children. If you put a text directly as children the component will not function properly. | |