How do I mount a volume from one container into another one in Compose v3?

I need to build an stack with PHP-FPM and NodeJS. I don't want to mix both in the same container so I choose Docker Compose. This is how my docker-compose.yml looks like:

version: '3'
services:
    webserver:
        build: https://github.com/reypm/php-fpm
        args:
          INSTALL_COMPOSER: true
        dns:
            - 8.8.8.8
            - 8.8.4.4
        volumes:
          - ./laravel_node:/var/www/html
    nodejs:
        image: node:latest

In Docker Compose v3 volumes_from disappear and the docs here for volumes isn't so clear to me.

How do I mount the VOLUME /var/www/html on the NodeJS container so I run a command in NodeJS container and the result is present on PHP-FPM container?

I haven seen some examples 1, 2 but this isn't used or at least I couldn't find how to achieve this.

via ReynierPM