stackexchange.mustache in onebox-1.8.23

- old
+ new

@@ -1,7 +1,7 @@
 {{#owner.profile_image}}
   <a href="{{owner.link}}" target="_blank">
-    <img alt="{{owner.display_name}}" src="{{owner.profile_image}}" class="thumbnail">
+    <img alt="{{owner.display_name}}" src="{{owner.profile_image}}" class="thumbnail onebox-avatar">
   </a>
 {{/owner.profile_image}}
 <h4>
   <a href="{{link}}" target="_blank">{{{title}}}</a>
 </h4>