header class="mdc-top-app-bar navbar"
  div class="mdc-top-app-bar__row"
    section class="mdc-top-app-bar__section mdc-top-app-bar__section--align-start"
      a href="#" class="material-icons mdc-top-app-bar__navigation-icon" menu
      span class="mdc-top-app-bar__title" Title