Seven Commandments of iPhone Auto Layout

1. Tweak the properties of the StackView
2. Use another StackView
3. Tweak the compression resistance or the hugging priority
4. Add constraints to the StackView
5. Add constraints to the Views
6. To connect views within different Stackviews, use V
7. If everything else fails, use a filler

Reference: Udacity https://www.youtube.com/watch?time_continue=194&v=HUcSpah_TIM