microblog/app/templates/_post.html

    <table>
        <tr valign="top">
            <td><img src="{{ post.author.avatar(36) }}"></td>
            <td><a href="{{ url_for('user', username=post.author.username) }}">{{ post.author.username }}</a> says:<br>{{ post.body }}</td>
        </tr>
    </table>