postcss-image-set 

[PostCSS] plugin for fallback image-set.

[PostCSS]: https://github.com/postcss/postcss

``css
.foo {
/ Input example /
background-image: image-set(url(img/test.png) 1x,
url(img/test-2x.png) 2x,
url(my-img-print.png) 600dpi);
}
`

`css
.foo {
/ Output example /
background-image: url(img/test.png);
background-image: image-set(url(img/test.png) 1x,
url(img/test-2x.png) 2x,
url(my-img-print.png) 600dpi);
}
`

Usage

`js
postcss([ require('postcss-image-set') ])
``

See [PostCSS] docs for examples for your environment.