dl-cell--12-col-tablet mdl-grid">
      <div class="mdl-layout__header-row mdl-cell mdl-cell--12-col mdl-cell--12-col-tablet mdl-cell--8-col-desktop">
        <h3>Welcome email demo</h3>
      </div>
    </div>
  </header>
  <main class="mdl-layout__content mdl-color--grey-100">
    <div class="mdl-cell--12-col mdl-cell--12-col-tablet mdl-grid">

      <!-- Card containing the sign-in UI -->
      <div id="demo-signed-out-card" class="mdl-card mdl-shadow--2dp mdl-cell">
        <div class="mdl-card__support