diff --git a/grid.css b/grid.css
index c2235fd..dc1bce2 100644
--- a/grid.css
+++ b/grid.css
@@ -184,6 +184,8 @@ a:hover { text-decoration: underline; }
 -------------------------------------------------------------- */
 .button {
   background-color: #497bad;
+  -moz-border-radius: 3px;
+  -webkit-border-radius: 3px;
   border-radius: 3px;
   color: #fff;
   cursor: pointer;