diff --git a/packages/vant/src/popup/index.less b/packages/vant/src/popup/index.less
index afde74aea..fc9db3f20 100644
--- a/packages/vant/src/popup/index.less
+++ b/packages/vant/src/popup/index.less
@@ -23,8 +23,10 @@ body {
 
     &--center {
       top: 50%;
-      left: 50%;
-      transform: translate3d(-50%, -50%, 0);
+      left: 0;
+      right: 0;
+      margin: 0 auto;
+      transform: translateY(-50%);
 
       &.van-popup--round {
         border-radius: var(--van-popup-round-radius);