text in body Article. anchor text and related post can't be selected

My theme is Mesocolumn, my problem is text in body Article. anchor text and related post can’t be selected.

My mistake was to edit themes mesocolumn parent. When I want to restore mesocolumn theme, setting mesocolumn theme settings that remain on my previous edit. How can I restore the settings to the default settings mesocolumn theme?

Sorry my english is bad , i am from Indonesia, thanks..