Export project with inline style and scipt for web-banner

Hello good people. I was thinking about making an email newsletter for MailChimp and other lead systems. In that case, I know fx. that you need the CSS to be inline the HTML. I was also thinking to use it for web-banner.

I was thinking will be cool if you cut, chose how to export/inline the CSS and Javascript ore there was some steps for choosing how the code is going to be used.

Example a guide I have to use for a webbanner.
https://google.github.io/styleguide/htmlcssguide.html