blog/webapp/templates/blog_post/_create.html

<form action="{{ url_for('create_blog_post') }}" method="post">
    <input type="hidden" name="_next" value="{{ _next or request.args.get('_next') or url_for('list_blog_post') }}"/>
    <table>
    <tr><td>
      <label for="input-blog_post-filename">{{ _("filename") }}</label>:
        </td><td>
        <input id="input-blog_post-filename"
               type="text" name="filename" autocomplete="off"
        />
    </td></tr>
    <tr><td>
      <label for="input-blog_post-title">{{ _("title") }}</label>:
        </td><td>
        <input id="input-blog_post-title"
               type="text" name="title" autocomplete="off"
        />
    </td></tr>
    <tr><td>
      <label for="input-blog_post-body">{{ _("body") }}</label>:
        </td><td>
        <textarea id="input-blog_post-body"
                  name="body"></textarea>
    </td></tr>
    </table>
    <input type="submit">
</form>