PostCSS Include Selector

PostCSS plugin Less-like class mixins for PostCSS.

.color-white {
    color: white;
}

.background-red {
    background-color: red;
}

.alert--danger {
    @assign .background-red, .color-white;
}

.color-white {
    color: white;
}

.background-red {
}

.alert--danger {
    color: white;
    background-color: red;
}

Usage

postcss([ require('postcss-assign') ])

See PostCSS docs for examples for your environment.