Overlaying an image to a clip

New to Resolve here, I'm making a video where I want to put an image with an aspect ratio of 3:4 (vertical), but the project ratio is 9:16 (vertical too), the problem I have is that when de image is on 1:1 scale it creates black bars on top and bottom and covers the clip I want to show, even if the image itself doesn't have any bars at all, obviously I'm missing something really basic, I don't want to resize the image because I want it to cover the full width of the project

As a new user, your first course of action should be to complete some Resolve training. The Beginner's Guide and Advanced Editing are an excellent groundwork to get you moving smoothly.

https://www.blackmagicdesign.com/produc ... e/training