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@ackl/postcss-logical

v5.0.3

Published

Use logical properties and values in CSS

Downloads

4

Readme

:warning: This postcss-logical fork has been modified to to work with stylis type pre-processor syntax in jsx files and postcss8 You are probably looking for the original from csstools

PostCSS Logical Properties and Values

NPM Version CSS Standard Status Build Status Support Chat

PostCSS Logical Properties and Values lets you use logical, rather than physical, direction and dimension mappings in CSS, following the CSS Logical Properties and Values specification.

'Can I use' table

.banner {
  color: #222222;
  inset: logical 0 5px 10px;
  padding-inline: 20px 40px;
  resize: block;
  transition: color 200ms;
}

/* becomes */

.banner:dir(ltr) {
  padding-left: 20px;
  padding-right: 40px;
}

.banner:dir(rtl) {
  padding-right: 20px;
  padding-left: 40px;
}

.banner {
  resize: vertical;
  transition: color 200ms;
}

/* or, when used with { dir: 'ltr' } */

.banner {
  color: #222222;
  top: 0;
  left: 5px;
  bottom: 10px;
  right: 5px;
  padding-left: 20px;
  padding-right: 40px;
  resize: vertical;
  transition: color 200ms;
}

/* or, when used with { preserve: true } */

.banner:dir(ltr) {
  padding-left: 20px;
  padding-right: 40px;
}

.banner:dir(rtl) {
  padding-right: 20px;
  padding-left: 40px;
}

.banner {
  color: #222222;
  top: 0;
  left: 5px;
  bottom: 10px;
  right: 5px;
  inset: logical 0 5px 10px;
  padding-inline: 20px 40px;
  resize: block;
  resize: vertical;
  transition: color 200ms;
}

These shorthand properties set values for physical properties by default. Specifying the logical keyboard at the beginning of the property value will transform the flow-relative values afterward into both physical LTR and RTL properties:

Logical Borders

  • border, border-block, border-block-start, border-block-end, border-inline, border-inline-start, border-inline-end, border-start, border-end, border-color, border-block-color, border-block-start-color, border-block-end-color, border-inline-color, border-inline-start-color, border-inline-end-color, border-start-color, border-end-color, border-style, border-block-style, border-block-start-style, border-block-end-style, border-inline-style, border-inline-start-style, border-inline-end-style, border-start-style, border-end-style, border-width, border-block-width, border-block-start-width, border-block-end-width, border-inline-width, border-inline-start-width, border-inline-end-width, border-start-width, border-end-width, border-start-start-radius, border-start-end-radius, border-end-start-radius, border-end-end-radius

Logical Offsets

  • inset, inset-block, inset-block-start, inset-block-end, inset-inline, inset-inline-start, inset-inline-end, inset-start, inset-end

Logical Margins

  • margin, margin-block, margin-block-start, margin-block-end, margin-inline, margin-inline-start, margin-inline-end, margin-start, margin-end

Logical Paddings

  • padding, padding-block, padding-block-start, padding-block-end, padding-inline, padding-inline-start, padding-inline-end, padding-start, padding-end

Logical Sizes

  • block-size, max-block-size, min-block-size, inline-size, max-inline-size, min-inline-size

Flow-Relative Values

  • clear: inline-start, clear: inline-end, float: inline-start, float: inline-end, text-align: start, text-align: end

By default, PostCSS Logical Properties and Values creates fallback selectors which require at least one [dir] attribute in your HTML. If you don’t have any [dir] attributes, consider using the following JavaScript:

// force at least one dir attribute (this can run at any time)
document.documentElement.dir = document.documentElement.dir || "ltr";

Otherwise, consider using the dir option to transform all logical properties and values to a specific direction.

require("postcss-logical")({
  dir: "ltr",
});

Usage

Add PostCSS Logical Properties and Values to your project:

npm install postcss-logical --save-dev

Use PostCSS Logical Properties and Values to process your CSS:

const postcssLogical = require("postcss-logical");

postcssLogical.process(YOUR_CSS /*, processOptions, pluginOptions */);

Or use it as a PostCSS plugin:

const postcss = require("postcss");
const postcssLogical = require("postcss-logical");

postcss([postcssLogical(/* pluginOptions */)]).process(
  YOUR_CSS /*, processOptions */
);

PostCSS Logical Properties and Values runs in all Node environments, with special instructions for:

| Node | PostCSS CLI | Webpack | Create React App | Gulp | Grunt | | ----------------------- | ------------------------------------- | ----------------------------- | ----------------------------------------------- | ----------------------- | ------------------------- |

Options

dir

The dir option determines how directional fallbacks should be added to CSS. By default, fallbacks replace the logical declaration with nested :dir pseudo-classes. If dir is defined as ltr or rtl then only the left or right directional fallbacks will replace the logical declarations. If preserve is defined as true, then the dir option will be ignored.

preserve

The preserve option determines whether directional fallbacks should be added before logical declarations without replacing them. By default, directional fallbacks replace logical declaration. If preserve is defined as true, then the dir option will be ignored.