Hi I would like to know how I can make all my images responsive to a phone or tablet.
Hello Valerie,
Apologies for late response due to holidays. This is the only time of the year that we take holidays 
The images are responsive by default for all devices. If you are experiencing any issue with this, please try going to Tools >> Regen. Thumbnails and regenerate all thumbnails.
Thank you
Thanks for your hep!