Using the 2010 theme.
Using the Visual editor.
Insert an image, right aligned with a caption. Looks good.
As soon as I add a left margin of, say, 30px to create more space between the image and the text, image is shift right by 30px. The caption is on a grey background and looks to be in the correct location, but no margin is applied between it and the text.
Hope I've described this well enough for someone to understand the problem I'm having.
Can someone give me some advice about to handle this. I'm happy to add some css if that's the solution.