PostCSS HostContext

PostCSS plugin to add :host-context selector to every selector.

Purpose? work around for this angular/angular#7108

[ci-prj] https://codeship.com/projects/154703

:host-context h3 {
    outline: 0;
}
.button:hover {
    background: red;
}

:host-context h3 {
    outline: 0;
}
:host-context .button:hover {
    background: red;
}

Usage

postcss([ require('postcss-host-context') ])