don't load google font via http

When using https protocol for the backend of wordpress (which you should), I get a mixed content warning, because you load a google font in your stylesheet with hardcoded “http://”.

Instead you should use the format:

@import url(//fonts.googleapis.com/css?family=Exo:100,200,300,400,500,700);

That way it will choose whatever protocol is appropriate and not give mixed-content warnings.

Best, Armin.

https://wordpress.org/plugins/wp-custom-backend-css/