I've defined the borders and margins for images in my
stylesheet, but when I import an image into a topic, RH
automatically adds style="border: none; " etc to the img tag so the
stylesheet values get ignored. Is there some way to prevent RH from
doing this? I don't want to have to manually apply the same
formatting to all my images.
There is no way to automatically add image borders/margins
other than setting them each time in the dialog when you add one.
However there are a couple of options.
Firstly you could use a tool such as Macro Express to create
a keyboard shortcut to assign the required style on the image.
Another option is to not use a style at all but to use a find and
replace tool towards the end of your project to replace the
required style tag. A bit more risky but perfectly doable.