Thank you Roman!
I tried adding that css but no luck. The image still slides and scrolls up and down.
Here’s an example of a website that looks like mine: https://just-a-demo.com/
When you scroll down, the sydney opera house image scrolls down behind the row behind it.
Here’s a website with the home page image behaving how I’d like mine to: https://www.newswire.com/
The main home page image is static as you scroll down the page.
Thanks for your help!