SSL Question/Error

[Silvio Siefke]

Hello,

i has set my vhost with ssl and has create a certificate on cacert.org. 
I use the tutorial on:

https://www.mare-system.de/guide-to-nginx-ssl-spdy-hsts/

I has no problems in error log, no in access log all ok, only when i 
call my blog with chrome or firefox the css files will not be loaded.
Is thats a browser error or is it configuration of ssl? Without SSL 
run all perfect, with ssl blog css not load. 

I use the follow in vhost config
listen 443 ssl spdy;
certificate
key

and this two lines in global config:
ssl_session_cache   shared:SSL:10m;
sl_session_timeout 10m;

Has someone idea?

Thank you for help & Nice Day
Silvio