So, this took me a few minutes to work out, in ATO --> Add HTML/CSS Inserts --> CSS Inserts
Add the following (and style as you see fit).
Code:
.avatar-64{ padding: 5px 5px 5px 5px !important; border: solid 4px #eee !important; margin: 10px 10px 0px 0px !important; }
Code:
if ( function_exists('post_class') ) { ?> <?php if (!is_page()) {echo get_avatar( get_the_author_email(),'64' );} ?> <div <?php if ( is_page() ) { post_class('post'); } else { post_class(); } ?> id="post-<?php the_ID(); ?>">
Credits to JuggleDad for the php line that I found in one of his earlier earlier posts.
Hope it's useful so someone.