#Px to rem for VSCode With this extension you can make '18px' to 'rem(18)'. It need if you use sass or scss, where you may be has next function:

    @function rem($pixels){
        @return $pixels / $font_size + rem;
    }

Where $font_size is font size of your html;

Hotkeys

alt+c - convert 10px to rem(10px) and back (of course it's converts #{rem(10px)} inside of "calc" function)