diff --git a/zh-cn/application-dev/reference/arkui-ts/figures/zh-cn_image_custom.gif b/zh-cn/application-dev/reference/arkui-ts/figures/zh-cn_image_custom.gif
index 7ce7ddd59482b67c26553ad04fd8df26a0af5ddb..0b59ac57d889b57ea36faa1fab0224f60c670c0e 100644
Binary files a/zh-cn/application-dev/reference/arkui-ts/figures/zh-cn_image_custom.gif and b/zh-cn/application-dev/reference/arkui-ts/figures/zh-cn_image_custom.gif differ
diff --git a/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md b/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md
index ed12451e190dc68e22ccce2af92343b249231e45..2d32e16f423a86b9f3219789cd84ce83081313f1 100644
--- a/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md
+++ b/zh-cn/application-dev/reference/arkui-ts/ts-methods-custom-dialog-box.md
@@ -108,7 +108,7 @@ struct CustomDialogUser {
     }),
     cancel: this.existApp,
     autoCancel: true,
-    alignment: DialogAlignment.Default,
+    alignment: DialogAlignment.Bottom,
     offset: { dx: 0, dy: -20 },
     gridCount: 4,
     customStyle: false,