Fixed sidebar with custom background color

Lorem Ipsum is a text that can be useful to explain the type of post or other characteristics of the site in this page. It is usually the first part of the read-more, so I hope to make it clear what is to be read and what not.

Lorem Ipsum for science, music, sport, etc, Europe uses the same vocabulary. The languages only differ in their grammar, their pronunciation and their most common words. Everyone realizes why a new common language would be desirable: one could refuse to pay expensive translators.