You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

30 lines
942 B

---
category: Components
type: Other
title: Affix
---
Make an element sticky to viewport.
8 years ago
## When To Use
When user browses a long web page, some content need to sticky to viewport. It is common for menus and actions.
Please note that Affix should not cover other content in page, especially when the size of viewport is small.
## API
| Property | Description | Type | Default |
|--------------|-----------------------|----------|--------------|
| offsetTop | Pixels to offset from top when calculating position of scroll | Number | 0 |
| offsetBottom | Pixels to offset from bottom when calculating position of scroll | Number | - |
| onChange | Callback when affix state is changed | Function(affixed) | - |
**Note:** Children of `Affix` can not be `position: absolute`, but you can set `Affix` as `position: absolute`:
```jsx
<Affix style={{ position: 'absolute', top: y, left: x}}>
...
</Affix>
```