Banner Sizes – Please Help

Hi @queensratchet

You can actually use any size for both the slider size and the image size. What we usually suggest is to use images that match either your set slider size or the size your slider has in a full HD monitor.
Depending on your setup, you could apply the same tactic to your slider size. E.g. if you plan to use your slider in a 800px wide area (and it won’t really be wider than that), there’s not much point creating a slider that is wider than 800px.
If you are working on a full width slider, you could set it up like this slider was made: https://smartslider3.com/free-full-width-slider-wordpress/
using maximum height (https://smartslider3.helpscoutdocs.com/article/399-responsive-mode-fullwidth#height)