多层抽屉切换时出现背景透视情况

[nuintun]

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

3.8.2

Environment

WIN10 - Chome68 - React 16

Reproduction link

Steps to reproduce

抽屉现在显示和关闭时有透明度变化，会引起问题，视觉体验很差！

What is expected?

背景不透视

What is actually happening?

背景透视

[ant-design-bot]

Translation of this issue:

---

Multi-layer drawer switching background perspective

• I have searched the issues of this repository and believe that this is not a duplicate.

Version

3.8.2

Environment

WIN10 - Chome68 - React 16

Reproduction link

Steps to reproduce

The drawer now has a transparency change when it is displayed and closed, causing problems and a poor visual experience!

What is expected?

Background not perspective

What is actually happening?

Background perspective

[chenshuai2144]

He has a transparency animation！
@jljsj33

[jljsj33]

多层出来时考虑去掉透明。。
透明去掉吧，，，切换方向时不会在真实场景里使用。。。