Site URL: https://www.portraitsofwonderland.com/
I have two images on my main page which are quite large for standard viewing on a computer, but they need to be replaced for mobile only (simply sizing the original images will not be suitable for mobile). I have tried a couple of different suggestions based on what I could find from others, but I cannot get the images to be replaced correctly. I believe that they can be replaced through simple CSS change? Any suggestions would be greatly appreciated.