diff --git a/static/css/note.css b/static/css/note.css
index d089f4b..33783ec 100644
--- a/static/css/note.css
+++ b/static/css/note.css
@@ -173,13 +173,14 @@ ol li {
 .thumbnail_left {
   float: left;
   border-width: 0;
-  padding-right: 2em;
-  padding-bottom: 1em;
+  margin: 1em;
+  margin-right: 2em;
+  margin-bottom: 1em;
 }
 
 .thumbnail_right {
   float: right;
   border-width: 0;
-  padding-left: 2em;
-  padding-bottom: 1em;
+  margin-left: 2em;
+  margin-bottom: 1em;
 }
diff --git a/static/html/upgrade.html b/static/html/upgrade.html
index 08c19f2..15c7782 100644
--- a/static/html/upgrade.html
+++ b/static/html/upgrade.html
@@ -10,7 +10,7 @@ features you can look forward to.
 
 <p>
 <a href="/static/images/share.png" target="_new"><img
-src="/static/images/share_thumb.png" class="thumbnail_right" /></a>
+src="/static/images/share_thumb.png" class="thumbnail_right" width="200" height="200" /></a>
 Most of the time, you want to keep your personal wiki all to yourself. But
 sometimes you simply need to share your work with friends and colleagues. When
 you upgrade your Luminotes account, you'll be able to invite specific people
@@ -23,7 +23,7 @@ your wiki notebook.
 
 <p>
 <a href="/static/images/access.png" target="_new"><img
-src="/static/images/access_thumb.png" class="thumbnail_left" /></a>
+src="/static/images/access_thumb.png" class="thumbnail_left" width="200" height="200" /></a>
 With an upgraded Luminotes wiki, you'll decide exactly how much access to give
 people. Collaborators can make changes to your notebook, while viewers can
 only read your wiki. And owners have the same complete access to your notebook