> are created: one per group
                  </li>
                  <br />
                  <li>
                    To do so, data is bound to each svg area. This is very
                    handy: each time a component will be created, it will be
                    done for each subchart
                  </li>
                  <br />
                  <li>ToDo: improve explanation</li>
                </ul>
              </div>
            </div>
          </div>

          <!-- ===================