diff --git a/www/countdown.js b/www/countdown.js
index 4234377..371d040 100644
--- a/www/countdown.js
+++ b/www/countdown.js
@@ -235,7 +235,8 @@ function pad(num) {
 
 function counterClass(millisecsRemaining) {
   if (millisecsRemaining > 3600000) return "hours";
-  if (millisecsRemaining > 60000) return "minutes";
+  if (millisecsRemaining > 600000) return "minutes";
+  if (millisecsRemaining > 60000) return "ten-minutes";
   if (millisecsRemaining > 10000) return "seconds";
   return "countdown";
 }
diff --git a/www/index.html b/www/index.html
index e1b47e6..111c138 100644
--- a/www/index.html
+++ b/www/index.html
@@ -16,6 +16,7 @@
       }
       div.hours { color: black; }
       div.minutes { color: green; }
+      div.ten-minutes { color: orange; }
       div.seconds { color: orange; animation: blinker 1s linear infinite; }
       div.countdown { color: red; animation: blinker 1s linear infinite; }
       @keyframes blinker {