Responsive - group items resize and reposition to center of stage

Hi just wanted to ask again about responsive animate projects.

I wanted to make a responsive hero slider and I want a a group of elements to scale and reposition as the window is resize. Is this possible? No matter how I try some part of the elements don't resize or don't reposition toward the center of the stage. Please have a look at the screenshots below.

Then when the window is resized, the the grouped elements don't properly resize or stick to the center.

Please, any help would be much appreciated as I am drawing a blank on what other methods to do.