avatar tweaks

backend/app/templates/user.html

@@ -3,7 +3,9 @@
 {% block content %}
 	<table>
 		<tr valign="top">
-			<td><img src="data:image/png;base64,{{ user.gen_avatar(write_png=False) }}"></td>
+			<td style="vertical-align: middle; text-align: center;">
+				<img style="vertical-align: middle;" src="data:image/png;base64,{{ user.gen_avatar(write_png=False) }}">
+			</td>
 			<td>
 				<h1>User: {{ user.username }}</h1>
 				<h1>CUdebug: {{ current_user }}</h1>