Start screen with Background Image

Hello

How can I create a Start Page with a Background image (Background just on start page). Like this:

I’ve already tried erverything form this post:

But it din’t worked as I have to assign the Background to just on View.

An how can I middle the Button? Should I add a custom css or is there a ionic patter for this?

Don’t target the view, but target the Scroll content.

.scroll-content#imagebg {
  background: url(http://placehold.it/300x300);
}