postcss-apply-class

PostCSS Apply Class

PostCSS plugin to apply CSS classes in a similar fashion to LESS.

Using this input.css:

.bold {
    font-weight: bold;
}
.text-small {
    font-size: .75rem;
}
.foo {
    @apply .bold, .text-small;
}

you will get:

.bold {
    font-weight: bold;
}
.text-small {
    font-size: .75rem;
}
.foo {
    font-weight: bold;
    font-size: .75rem;
}

Usage

postcss([ require('postcss-apply-class') ])

See PostCSS docs for examples for your environment.