I'm not a "magician of CSS", but I like to customize a little bit the theme to make it more pleasant for users. I thank MyThemeShop Support to always solve all of my problems quickly.
I add that with the theme "Scheme" the organic traffic of my blog has improved by 28.04%, in less than a year! (Here are the details: http://blog.tagliaerbe.com/2015/07/wordpress-responsive-design.html).
Thank you!