the code worked! thank you! I had been placing that same code in the area of:
img.size-auto,
img.size-full,
img.size-large,
img.size-medium,
img.aligncenter,
.attachment img,
.widget-area img,
thank you to everyone, I am excited to try that code, but have been a little intimidated about using a child theme. I am unfamiliar with how they work and haven’t found clear and simple instructions. I will try the fix, just to make sure it works, then start the task of getting to know child themes. feedback on the fix coming soon…