Support for CSS Nesting #37

Hey!

Actually CSS Nesting is not working when minifying files. The code just gets trimmed to the first element.

So a style.css like this.

html {
    width: 100%;
    height: 100%;
    
    body {
        background-color: grey;
    }
}

Will minify into this style.min.css.

html {
    width: 100%;
    height: 100%;
}

Any plans on supporting this in the near future?

REF: https://caniuse.com/css-nesting