How do I keep my UI the exact same size/scale/position no matter the screen?

I’m trying to make a fighting game and I want the health bars and UI to be in the exact same spot no matter what. I have a target res of 1024 x 768 but if the window isn’t perfectly sized, the UI will sit at the center and not fill the whole screen, or be oddly seperated to the edges, depending how I set up the anchors.

Thanks!

Use anchors.