diff --git a/booking.css b/booking.css
index c06fbb1..836838b 100644
--- a/booking.css
+++ b/booking.css
@@ -9,10 +9,14 @@
 #helper-new-group-row {background: #9dd781; border-top: thick double #ff0000;}
 #reserveleader-new-group-row {background: #d4dc5c; border-top: thick double #ff0000;}
 #reservehelper-new-group-row {background: #d4dc5c; border-top: thick double #ff0000;}
-tr[class*="leader-row*"] {background: #6495ED;}
-tr[class="helper-row*"] {background: #9dd781;}
-tr[class="reserveleader-row"] {background: #d4dc5c;}
-tr[class="reservehelper-row"] {background: #d4dc5c;}
+tr.leader-row.odd {background: #6495ED;}
+tr.leader-row.even {background: #6495ED;}
+tr.helper-row.odd {background: #9dd781;}
+tr.helper-row.even {background: #9dd781;}
+tr.reserveleader-row.odd {background: #d4dc5c;}
+tr.reserveleader-row.odd {background: #d4dc5c;}
+tr.reservehelper-row.odd {background: #d4dc5c;}
+tr.reservehelper-row.odd {background: #d4dc5c;}
 /* test for email page*/
 /* tr.normal-row.odd {} */
 /* tr.normal-row.even {} */