diff --git a/common.css b/common.css
index 5bb2d2b7..4d35224c 100644
--- a/common.css
+++ b/common.css
@@ -1,4 +1,5 @@
 
+html{scroll-behaviour:smooth;}
 /****************************************/
 /* common styles used for v1 through v4 */
 /****************************************/