I used the following markup to create a dotted border on the character style I've set for links (which I randomly assigned to <mark> for the time being):
When I preview in Muse or the browser, I get a yellow highlight behind the text. Why is that?
The <Mark> HTML tag is for highlighting text. If you want to define your own style you need to place a . before the name.
Ha, thanks! Clearly I know just enough to be dangerous.
Also, is there a way to create your own style, but also assign it to a character style? That was why I used a random span tag, because I could select it from the list in the character style palette (while not realizing it would also highlight my text!).
Yes. If you define a style in the head section, .mystyle for example, you can use the same style name as a character, paragraph or graphic style. Just make sure the one you define in Muse just has basic attribute. You can also use the !important tag in your CSS to ensure it overrides the Muse version.