scinote-web/app/views/projects/index/_introductory_popup.html.erb

<!-- introductory popup modal -->
<div class="modal" id="introductory-popup-modal" tabindex="-1" role="dialog" aria-labelledby="introductory-modal-label">
  <div class="modal-dialog modal-lg" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        <h4 class="modal-title" id="introductory-modal-label"><%=t 'introductory.popup-title' %></h4>
      </div>
      <div class="modal-body">
        <p><%= t('introductory.sentence_one_html') %></p>
        <%= image_tag 'introductory_popup/image2.png', class: 'img-responsive' %>
        <p><%=t 'introductory.sentence_two_html' %></p>
        <%= image_tag 'introductory_popup/image1.jpg', class: 'img-responsive' %>
        <p><%=t 'introductory.sentence_three_html' %></p>
        <p><%=t 'introductory.sentence_four_html' %></p>
        <p><%=t 'introductory.sentence_five_html' %></p>
        <p><%=t 'introductory.sentence_six_html' %></p>
        <%= image_tag 'introductory_popup/image3.png', class: 'img-responsive' %>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal"><%=t 'general.cancel' %></button>
      </div>
    </div>
  </div>
</div>