This follows the new semantic meaning of <small> in HTML 5
Quoting the spec:
> Small print typically features disclaimers, caveats, legal restrictions,
> or copyrights. Small print is also sometimes used for attribution, or
> for satisfying licensing requirements.
{{ content }}
<div class="footer">
- <p>
+ <small>
© <time datetime="{{ site.time | date_to_xmlschema}}">{{ site.time | date: '%Y' }}</time>. All rights reserved.
- </p>
+ </small>
</div>
</div>