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postcss-momentum-scrolling

★ 70 Open GitHub ↗

PostCSS plugin add 'momentum' style scrolling behavior (-webkit-overflow-scrolling: touch) for elements with overflow (scroll, auto) on iOS

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# PostCSS Momentum Scrolling

[PostCSS]:          https://github.com/postcss/postcss
[MIT]:              https://github.com/solversgroup/postcss-momentum-scrolling/LICENSE
[official docs]:    https://github.com/postcss/postcss#usage
[Releases history]: https://github.com/solversgroup/postcss-momentum-scrolling/CHANGELOG.md

[![npm](https://img.shields.io/npm/v/postcss-momentum-scrolling.svg)](https://www.npmjs.com/package/postcss-momentum-scrolling)
[![npm](https://img.shields.io/npm/dt/postcss-momentum-scrolling.svg)](https://www.npmjs.com/package/postcss-momentum-scrolling)

[PostCSS] plugin for adding **momentum** style scrolling behavior (`-webkit-overflow-scrolling:touch`) for elements with overflow (scroll, auto) on iOS.

## Example

```css
/* Input example */
.minicart {
  overflow: scroll;
}
```

```css
/* Output example */
.minicart {
  overflow: scroll;
  -webkit-overflow-scrolling: touch;
}
```

## Live Example

![With and without -webkit-overflow-scrolling: touch](https://yunusga.github.io/img/postcss-momentum-scrolling.gif)

[Live demo](https://dev.solvers.group/momentum/), [YouTube demo](https://www.youtube.com/watch?v=mYLSv7Il-D0)

### 🔗 Links:

- [MDN](https://developer.mozilla.org/en-US/docs/Web/CSS/-webkit-overflow-scrolling)
 - [Momentum Scrolling on iOS Overflow Elements](https://css-tricks.com/snippets/css/momentum-scrolling-on-ios-overflow-elements/)
 - [Six things I learnt about iOS Safari's rubber band scrolling](https://www.specialagentsqueaky.com/blog-post/ssy5i7qw/2015-06-10-six-things-i-learnt-about-ios-rubberband-overflow-scrolling/)

## Getting Started

First thing's, install the module:

```
npm install postcss-momentum-scrolling --save-dev
```

## 🍳 Usage

Check you project for existed PostCSS config: `postcss.config.js`
in the project root, `"postcss"` section in `package.json`
or `postcss` in bundle config.

If you already use PostCSS, add the plugin to plugins list:

```diff
module.exports = {
  plugins: [
+   require('postcss-momentum-scrolling')([
+     // example options
+     'hidden',
+     'scroll',
+     'auto',
+     'inherit'
+   ]),
    require('autoprefixer')
  ]
}
```

If you do not use PostCSS, add it according to [official docs]
and set this plugin in settings.

## 🍰 Options

> If the passed options are not an `Array`, then the default options will be set.

`Array` of `overflow` property values at which you want to add momentum style scrolling behavior. Default `['hidden', 'scroll', 'auto', 'inherit']` (use only `['scroll']` for minimize css size).

### Custom options example

```js
postcss([
  require('postcss-momentum-scrolling')([
    'hidden',
    'inherit'
  ])
])
```

```css
/* Before */
header {
  overflow: hidden;
}

main {
  overflow: scroll;
}

footer {
  overflow: inherit;
}
```

```css
/* After */
header {
  overflow: hidden;
  -webkit-overflow-scrolling: touch;
}

main {
  overflow: scroll;
}

footer {
  overflow: inherit;
  -webkit-overflow-scrolling: touch;
}
```

## Changelog

See [Releases history]

## License

[MIT]

## Other PostCSS plugins

- [`postcss-sort-media-queries`](https://github.com/yunusga/postcss-sort-media-queries) - plugin for combine and sort CSS media queries with **mobile first** or **desktop first** methods

postcss-momentum-scrolling

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