Font awesome 5 on pseudo elements

Question

In font awesome 4 you could easily apply an icon to a :before/:after element using CSS.

Is the same possible with the new font awesome 5 JS/SVG implementation? As fr

Answer 1

I think its working fine just like this:

.class:before{
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
}