Good morning community.
I am brand new to odoo and I need some help.

I am working on email templates. As we all know, in html emails, the safest way to add styles is to do it "inline".

The email templates I'm working on are dynamic. As in, there's multiple sections in a single xml file that can be loaded separately based on an ID.

The styles and format would be the same. For that reason I wanted to at least place the css in an "style" tag at the top of the xml file, so it applies to any given section of the template.

That would not be ideal because I'd have to add the "style" tag to other xml template files and it would be hard to maintain.

My questions is:
Can I "include/import"  the contents of a css file into an xml template file?

That way I only have to reference the file and maintain only one file for multiple templates.

Any feedback is highly appreciated.