UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36

Steps to reproduce the problem:
Open demo.html

When device mode is off and text "Hello world" is stickily positioned, the shadow is off screen. (See normal view.png)

When device mode is on and text "Hello world" is stickily positioned, the shadow is in screen and the text is pushed down. (See devce mode.png)


The behavior is inconsistent. I think it is the device mode view that is incorrect. position:sticky should affect the box instead of the box shadow.

Does it occur on multiple sites: N/A

Is it a problem with a plugin? N/A 

Did this work before? N/A 

Does this work in other browsers? N/A

Chrome version: 55.0.2883.87  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: