HTML view + css: Chrome [blocked] The page at ... ran insecure content from

HTML view + css: Chrome [blocked] The page at ... ran insecure content from

Hi everyone,
I'm using a couple HTML views to display some contents on my website.
The css formatting for the view is processed through a link to a css stylesheet on my server.

Everything works fine on Firefox (see for ex. http://www.meridian-online.com/about-us/ -- scroll down), but I discovered Chrome blocks the loading of the CSS stylesheet... According to the developer tools, Chrome detects that this is 'insecure content.'

Any way to circumvent this issue?
Without the CSS, these views are rather useless.

Cheers,
Dorian