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105 lines
3.3 KiB
Markdown
105 lines
3.3 KiB
Markdown
# PostCSS Double Position Gradients [<img src="https://postcss.github.io/postcss/logo.svg" alt="PostCSS" width="90" height="90" align="right">][postcss]
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[![NPM Version][npm-img]][npm-url]
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[![Build Status][cli-img]][cli-url]
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[![Support Chat][git-img]][git-url]
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[PostCSS Double Position Gradients] lets you use double-position gradients in
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CSS, following the [CSS Image Values and Replaced Content] specification.
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```pcss
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.linear-gradient {
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background-image: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
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}
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.conic-gradient {
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background-image: conic-gradient(yellowgreen 40%, gold 0deg 75%, #f06 0deg);
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}
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/* becomes */
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.linear-gradient {
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background-image: linear-gradient(90deg, black 25%, black 50%, blue 50%, blue 75%);
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background-image: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
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}
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.conic-gradient {
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background-image: conic-gradient(yellowgreen 40%, gold 0deg, gold 75%, #f06 0deg);
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background-image: conic-gradient(yellowgreen 40%, gold 0deg 75%, #f06 0deg);
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}
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```
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## Usage
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Add [PostCSS Double Position Gradients] to your project:
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```bash
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npm install postcss-double-position-gradients --save-dev
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```
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Use [PostCSS Double Position Gradients] to process your CSS:
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```js
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const postcssDoublePositionGradients = require('postcss-double-position-gradients');
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postcssDoublePositionGradients.process(YOUR_CSS /*, processOptions, pluginOptions */);
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```
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Or use it as a [PostCSS] plugin:
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```js
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const postcss = require('postcss');
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const postcssDoublePositionGradients = require('postcss-double-position-gradients');
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postcss([
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postcssDoublePositionGradients(/* pluginOptions */)
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]).process(YOUR_CSS /*, processOptions */);
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```
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[PostCSS Double Position Gradients] runs in all Node environments, with special instructions for:
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| [Node](INSTALL.md#node) | [PostCSS CLI](INSTALL.md#postcss-cli) | [Webpack](INSTALL.md#webpack) | [Create React App](INSTALL.md#create-react-app) | [Gulp](INSTALL.md#gulp) | [Grunt](INSTALL.md#grunt) |
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## Options
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### preserve
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The `preserve` option determines whether the original double-position gradients
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should be preserved. By default, double-position gradients are preserved.
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```js
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postcssDoublePositionGradients({ preserve: false })
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```
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```css
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.linear-gradient {
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background-image: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
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}
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.conic-gradient {
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background-image: conic-gradient(yellowgreen 40%, gold 0deg 75%, #f06 0deg);
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}
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/* becomes */
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.linear-gradient {
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background-image: linear-gradient(90deg, black 25%, black 50%, blue 50%, blue 75%);
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}
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.conic-gradient {
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background-image: conic-gradient(yellowgreen 40%, gold 0deg, gold 75%, #f06 0deg);
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}
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```
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[cli-img]: https://img.shields.io/travis/jonathantneal/postcss-double-position-gradients/master.svg
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[cli-url]: https://travis-ci.org/jonathantneal/postcss-double-position-gradients
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[git-img]: https://img.shields.io/badge/support-chat-blue.svg
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[git-url]: https://gitter.im/postcss/postcss
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[npm-img]: https://img.shields.io/npm/v/postcss-double-position-gradients.svg
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[npm-url]: https://www.npmjs.com/package/postcss-double-position-gradients
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[CSS Image Values and Replaced Content]: https://www.w3.org/TR/css-images-4/#color-stop-syntax
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[PostCSS]: https://github.com/postcss/postcss
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[PostCSS Double Position Gradients]: https://github.com/jonathantneal/postcss-double-position-gradients
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