After you sync content to the cloud, you can use the View in
Cloud option to view the content in the cloud site. This can be especially
useful if you locked the content on your on-premise site.
Hover over a synced file/folder in the library and click More then
View in Cloud.
Tip: Files and folders synced to the cloud display the 
synced icon. Contents of a folder that have been
synced display the 
indirectly synced
icon.
synced icon. Contents of a folder that have been
synced display the indirectly synced
icon.You can also view synced content on the cloud by clicking on the location
trail after clicking to display the
Sync Info box.
The synced cloud site will open, displaying your content.
Note: If you aren't logged
into the cloud you'll need to enter your email and password.