How to make Toolbar not overlap other content in Android?

Question

I am trying to develop an activity with a toolbar (the example is more or less taken from a tutorial), but the Toolbar always overlaps part of the other content. Here is a

Answer 1

I changed the CoordinatorLayout for activity_main to a vertical linear layout and it worked. I had Android Studio convert the view type for me and at first it broke my inclusion of the content_main. I restored the include callout as part of my conversion.