
C# 6 and .NET Core 1.0

While developing a UWP app, you can quickly see what it would look like on various devices in the XAML design window. The following screenshot is showing the 23" Desktop (1920 x 1080) 100% scale emulator:
Switch to a phone option with a vertical layout. The following screenshot is showing the 5" Phone (1920 x 1080) 300% scale emulator. You can see that the right-hand edge is visible:
You can also run the app in a Simulator rather than on Local Machine. You can also choose Remote Machine or Device:
The Simulator can rotate, and change input modes and screen resolution, using the buttons in the toolbar, on the right-hand edge of the Simulator window:
Test your apps with the Simulator, and then test on all of the actual devices that your users will deploy your app to.
Change the font size
Change margin width
Change background colour