diff --git a/layouts/common.styl b/layouts/common.styl
index e7a3856..17c267c 100644
--- a/layouts/common.styl
+++ b/layouts/common.styl
@@ -113,7 +113,7 @@ footer
 .btn-footer
   margin-top 50px
   font-size 12px
-  color #cccccc
+  color #333
   float left
 
   i
@@ -124,6 +124,8 @@ footer
 
 .btn-disable
   color #dfdede !important
+  user-select none
+  cursor not-allowed
 
 footer .footer
   color #a2a2a2