None of the above works now.

figure {margin:0} has no effect

amazon insist I put img inside these tags <figure>.. ..</figure>, but when done so, the images are all indented about 170 pixels, so 1/2" of right side of image goes off the screen, how can I stop that? <figure><img alt="Music score for Jack Hall." src="../Images/29JhFi_Jack_Hall.jpg"/><figcaption>Jack Hall by Jack Endacott.</figcaption></figure>

figure {margin:0} has no effect, and I cannot understand that hi tech code at all.