Rectangle Shape Behind Add to Cart Buttons

Hi Deborah, I am pretty sure your theme has CSS that is putting shadow on images (which is where that is coming from).

You can do a theme switch test to verify this.

You can grab this custom CSS plugin then add your CSS to override the shadow that your theme is adding to button images:
https://www.tipsandtricks-hq.com/wordpress-custom-css-plugin-6413

Thanks mra13. My theme designer made the fix when he saw what was happening. But knowing about that plugin is “good to know.”

Thank you.
Deborah