diff --git a/sao/src/sao.less b/sao/src/sao.less
index 507ed42f15..56aa6dc551 100644
--- a/sao/src/sao.less
+++ b/sao/src/sao.less
@@ -142,6 +142,7 @@ html[theme="default"] {
 #tablist {
     display: flex;
     overflow-x: auto;
+    scroll-behavior: smooth;
 
     > li {
         flex: auto;