Adjust style for email HTML?

(Peter N Lewis) #1

I added to my theme CSS:

mark {
  background: #ee0;

To tone down the bright yellow used by the <mark> keyword with the mark plugin.

However in the emails, the <mark> is sent without any styling, and so the email client does whatever it feels like (which for Mail is full #ff0 bright yellow).

How or where can I adjust the style in the HTML sent via email (this is for normal non-digest emails, but it would be good to do it for digest emails too, really any email sent).