version: 2
jobs:
  build:
    docker:
      - image: python:3
    steps:
      - run:
          name: install validator
          command: pip install html5validator
      - run:
          name: install OpenJDK
          command: apt update && apt install -y openjdk-8-jre
      - checkout
      - run:
          name: validate html
          command: html5validator --root .
      - run:
          name: validate css
          command: html5validator --css --root ./css