style Tag in header or stylesheet relation (General questions)

Hello

I'm just trying to get the WebServer-Control running as Component.
I wonder if I can set a stylesheet link in the header part, e.g.
link rel= stylesheet type= text/css href= formate.css

or if I can enter a style tag in the header where I can define styles. I cannot find any hint in the help, maybe I'm too blind

I've only seen the possibility to add WebHeader-Entries to the Header of the response object, but I cannot get it to work with my style-issue.

Thanks in advance and kind regards
reggie