Keep in mind, when you set a dimension while working on a layout rendition it's only for visualizing in the Layout Templates system. You are not setting the dimension of your reader's browser window when they're using the web viewer. They could change the size of their browser window at any time.The "Make Default" sets a layout rendition (tablet initially is the default) to be used as the starting point when you add a new layout rendition. HELP explains this.So initially, tablet is the default. ...

Thanks Colin very much for your explanation!Everything is working like a GEM!!!Thanks again.

Very nice summary Tommy!I'd add that shifting the thought from iOS and Android to phone and tablet is really important.We don't design articles or collection browse pages for iOS and Android, DPS 2015 doesn't support "renditions" the way DPS 2014 did.Your project has either one or two top-level collections for navigation on either all devices or phone and tablet -- the two top-level system is about the device class, not the OS.If you generate HTML articles with appropriate code to be flexible fo...

Sorry for the late reply. Thanks very much. I will look into this.thanks again!

Thanks you Colin!