It looks like you’re running your site on HTTPS and the cbox-theme does not switch the CSS file over to HTTPS. This is a bug; I’ve just created a ticket for this here:
https://github.com/PressCrew/infinity/issues/78
If you’re on HTTPS, Chrome blocks regular HTTP requests. Hence, the CSS is being blocked. Read this Chrome article for more details:
https://support.google.com/chrome/bin/answer.py?hl=en&answer=1342714
About the icon bug, we’ve had some reports about this in the past. What are you using for your server? Windows or Linux?