discourse/app/views/safe_mode/index.html.erb

<div class='container safe-mode'>
  <h2><%= t 'safe_mode.title'%></h2>
  <%= form_tag(safe_mode_enter_path) do %>
    <p>
      <%= t 'safe_mode.description' %>
    </p>
    <p>
    <label>
    <%= check_box_tag 'no_customizations', true, !flash[:must_select]%>
    <%= t 'safe_mode.no_customizations' %>
    </label>
    </p>
    <p>
    <label>
    <%= check_box_tag 'only_official', true, !flash[:must_select] %>
    <%= t 'safe_mode.only_official' %>
    </label>
    </p>
    <p>
    <label>
    <%= check_box_tag 'no_plugins', true, !flash[:must_select] %>
    <%= t 'safe_mode.no_plugins' %>
    </label>
    </p>
    <p>
      <%= submit_tag t('safe_mode.enter'), class: 'btn btn-danger' %>
      <%- if flash[:must_select] %>
        <span class='safe-mode-warning'>
          <i class='fa fa-warning'></i> <%= t 'safe_mode.must_select' %>
        </span>
      <%- end %>
    </p>
  <% end %>
</div>