From any CSS file you can import another CSS file using the @import directive.

Here is how you use it:

@import url(myfile.css)

url() can manage absolute or relative URLs.

One important thing you need to know is that @import directives must be put before any other CSS in the file, or they will be ignored.

You can use media descriptors to only load a CSS file on the specific media:

@import url(myfile.css) all;
@import url(myfile-screen.css) screen;
@import url(myfile-print.css) print;