Passing an optional stylesheet does nothing on sequence diagrams about mermaid.cli

The problem seems to be on the mermaid.cli side, as I can change the style for all elements on mermaid's webpage using the developer tools. Here's a screenshot:

For some weird reason, with a similar diagram and stylesheet as the above, I am only able to change the font-family for .labelText, .loopText, .messageText and text.actor but not .noteText on the command line.

[agusmba]

This is a problem with the core library, see mermaid-js/mermaid#587
Following the "official" way of setting the css does not work for all the items it should.

See also #24 for a PR which would also fix this, but it's on hold since it should be fixed in the core library.

[tylerlong]

Please refer to #24 (comment)