diff --git a/ivatar/static/css/ivatar.css b/ivatar/static/css/ivatar.css
index 7fc1b40..b4b66b4 100644
--- a/ivatar/static/css/ivatar.css
+++ b/ivatar/static/css/ivatar.css
@@ -84,8 +84,8 @@ a {
 
 .thumbnail {
   border: 0;
-  height: 80px;
-  width: 80px;
+  max-height: 80px;
+  max-width: 80px;
 }
 
 .avatar-list {