PostCSS Double Position Gradients [][postcss]

[][npm-url]
[][discord]



[][css-url]
[][css-url]

[PostCSS Double Position Gradients] lets you use double-position gradients in
CSS, following the [CSS Image Values and Replaced Content] specification.

``css
.linear-gradient {
background-image: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
}

.conic-gradient {
background-image: conic-gradient(yellowgreen 40%, gold 0deg 75%, #f06 0deg);
}

/ becomes /

.linear-gradient {
background-image: linear-gradient(90deg, black 25%, black 50%, blue 50%, blue 75%);
background-image: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
}

.conic-gradient {
background-image: conic-gradient(yellowgreen 40%, gold 0deg, gold 75%, #f06 0deg);
background-image: conic-gradient(yellowgreen 40%, gold 0deg 75%, #f06 0deg);
}
`

Usage

Add [PostCSS Double Position Gradients] to your project:

`bash
npm install postcss-double-position-gradients --save-dev
`

Use [PostCSS Double Position Gradients] to process your CSS:

`js
const postcssDoublePositionGradients = require('postcss-double-position-gradients');

postcssDoublePositionGradients.process(YOUR_CSS /, processOptions, pluginOptions /);
`

Or use it as a [PostCSS] plugin:

`js
const postcss = require('postcss');
const postcssDoublePositionGradients = require('postcss-double-position-gradients');

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

[PostCSS Double Position Gradients] runs in all Node environments, with special instructions for:

| Node | PostCSS CLI | Webpack | Gulp | Grunt |
| --- | --- | --- | --- | --- |

Options

$3

The preserve option determines whether the original double-position gradients
should be preserved. By default, double-position gradients are preserved.

`js
postcssDoublePositionGradients({ preserve: false })
`

`css
.linear-gradient {
background-image: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
}

.conic-gradient {
background-image: conic-gradient(yellowgreen 40%, gold 0deg 75%, #f06 0deg);
}

/ becomes /

.linear-gradient {
background-image: linear-gradient(90deg, black 25%, black 50%, blue 50%, blue 75%);
}

.conic-gradient {
background-image: conic-gradient(yellowgreen 40%, gold 0deg, gold 75%, #f06 0deg);
}
`

$3

The enableProgressiveCustomProperties option determines whether the original notation
is wrapped with @supports when used in Custom Properties. By default, it is enabled.

> [!NOTE]
> We only recommend disabling this when you set preserve to false or if you bring your own fix for Custom Properties.
> See what the plugin does in its README.

`js
postcssDoublePositionGradients({ enableProgressiveCustomProperties: false })
`

`css
:root {
--a-gradient: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
}

/ becomes /

:root {
--a-gradient: linear-gradient(90deg, black 25%, black 50%, blue 50%, blue 75%); / will never be used, not even in older browser /
--a-gradient: linear-gradient(90deg, black 25% 50%, blue 50% 75%);
}
``

[css-url]: https://cssdb.org/#double-position-gradients
[discord]: https://discord.gg/bUadyRwkJS
[npm-url]: https://www.npmjs.com/package/postcss-double-position-gradients

[CSS Image Values and Replaced Content]: https://www.w3.org/TR/css-images-4/#color-stop-syntax
[PostCSS]: https://github.com/postcss/postcss
[PostCSS Double Position Gradients]: https://github.com/csstools/postcss-plugins/tree/main/plugins/postcss-double-position-gradients