Resolved issue #149

app/styles/base.sass

@@ -24,6 +24,16 @@ h1 h2 h3 h4
   font-weight: normal
   letter-spacing: 1px
 
+.navbuttontext-user-name
+  max-width: 125px
+  overflow: hidden
+  text-overflow: ellipsis
+  white-space: nowrap
+  display: inline-block
+  padding: 0
+  margin: 0
+  height: 18px
+
 .navbar .nav.navbar-link-text, .navbar .nav.navbar-link-text > li > a
   font-family: 'Bangers', cursive
   font-weight: normal

app/templates/base.jade

@@ -12,7 +12,8 @@ body
           if me.get('anonymous') === false
             button.btn.btn-primary.navbuttontext#logout-button(data-i18n="nav.log_out") Log Out
             a.btn.btn-primary.navbuttontext(href="/account/profile/#{me.id}")
-              | #{me.displayName()}
+              div.navbuttontext-user-name
+                | #{me.displayName()}
               i.icon-cog.icon-white.big
 
           else