diff --git a/media/css/seahub.css b/media/css/seahub.css
index 145ba7865f..d84ac20f2b 100644
--- a/media/css/seahub.css
+++ b/media/css/seahub.css
@@ -3507,7 +3507,8 @@ textarea:-moz-placeholder {/* for FF */
 #folder-perm-tabs .perm-select {
     height:30px;
 }
-#share-popup .submit,
+#dir-user-share .submit,
+#dir-group-share .submit,
 #folder-perm-tabs .submit {
     margin-top:2px;
     height:30px;