PostCSS Logical Overscroll Behavior [][PostCSS]

npm install @csstools/postcss-logical-overscroll-behavior --save-dev

[PostCSS Logical Overscroll Behavior] lets you use overscroll-behavior-inline and overscroll-behavior-block properties following the [CSS Overscroll Specification].

``css
.inline {
overscroll-behavior-inline: auto;
}

.block {
overscroll-behavior-block: contain;
}

/ becomes /

.inline {
overscroll-behavior-x: auto;
}

.block {
overscroll-behavior-y: contain;
}
`

Usage

Add [PostCSS Logical Overscroll Behavior] to your project:

`bash
npm install postcss @csstools/postcss-logical-overscroll-behavior --save-dev
`

Use it as a [PostCSS] plugin:

`js
const postcss = require('postcss');
const postcssLogicalOverscrollBehavior = require('@csstools/postcss-logical-overscroll-behavior');

postcss([
postcssLogicalOverscrollBehavior(/ pluginOptions /)
]).process(YOUR_CSS /, processOptions /);
`

Options

$3

The inlineDirection option allows you to specify the direction of the inline axe. The default value is left-to-right, which would match any latin language.

You should tweak this value so that it is specific to your language and writing mode.

`js
postcssLogicalOverscrollBehavior({
inlineDirection: 'top-to-bottom'
})
`

`css
.inline {
overscroll-behavior-inline: auto;
}

.block {
overscroll-behavior-block: contain;
}

/ becomes /

.inline {
overscroll-behavior-y: auto;
}

.block {
overscroll-behavior-x: contain;
}
`

Each direction must be one of the following:

- top-to-bottom
- bottom-to-top
- left-to-right
- right-to-left`

[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test
[css-url]: https://cssdb.org/#logical-overscroll-behavior
[discord]: https://discord.gg/bUadyRwkJS
[npm-url]: https://www.npmjs.com/package/@csstools/postcss-logical-overscroll-behavior

[PostCSS]: https://github.com/postcss/postcss
[PostCSS Logical Overscroll Behavior]: https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-logical-overscroll-behavior
[CSS Overscroll Specification]: https://www.w3.org/TR/css-overscroll-1/#overscroll-behavior-longhands-logical