Chrome Version: 64.0.3282.14/10176.7.0 dev channel Kip,Reks and Daisy
OS: Chrome

What steps will reproduce the problem?
(1)Sign into User -> sign-out from Uber Tray ->click on three dot Menu to 'Add supervised User' -> 'Create Supervised User' screen is seen
(2)Now turn off Wi-Fi from Uber Tray -> 'Network not available' page is seen ->
 observe unnecessary space is seen after 'Select a network' drop down(Please refer video and Screenshot)

Expected: Unnecessary space should not be seen after 'Select a network' drop down(
Actual: Instead unnecessary space is seen

This is Regression issue as same is working fine in M-60

@alemate : Please confirm the Issue
 

Deleted: Actual_UnnecessarySpaceInNetworkOfflinePage.mp4 9.2 MB

	Actual_UnnecessarySpaceInNetworkOfflinePage.mp4 9.2 MB View Download

Deleted: Actual_UnnecessarySpaceInNetworkOfflinePage.jpg 532 KB

	Actual_UnnecessarySpaceInNetworkOfflinePage.jpg 532 KB View Download

Deleted: Expected_NetworkOfflinePage.mp4 8.7 MB

	Expected_NetworkOfflinePage.mp4 8.7 MB View Download

Deleted: Expected_NetworkOfflinePage.jpg 4.2 MB

	Expected_NetworkOfflinePage.jpg 4.2 MB View Download