diff --git a/pages/make_order/choose_sit/choose_sit.wxss b/pages/make_order/choose_sit/choose_sit.wxss
index 0afa0d2..cecc0db 100644
--- a/pages/make_order/choose_sit/choose_sit.wxss
+++ b/pages/make_order/choose_sit/choose_sit.wxss
@@ -127,7 +127,7 @@ page{
 .father-size {
   width: auto;
   background-color:#fff;
-  margin-top: 40rpx;
+  margin-top: 20%;
   margin-left: -25vw;
   margin-right: -25vw;
 }