I followed child theme instructions from here: http://codex.wordpress.org/Child_Themes
To make sure, everything works, before I start adding changes, I copied style.css to /wp-content/themes/spun-child/ and changed only the top part of it as instructed.
When child theme is activated, no circles show for articles with image. If I hover above the empty circle, colour image is displayed but no b&w.
Any ideas why?