Removing Thumbnail Completely

Hi there!

Apologies if this has already been asked, I couldn’t find it in the 16 pages of threads though.

Is it any neat way (Css preferably) of removing the thumbnails completely and solely having the text like Steve Pavlina has? ( http://personligutvecklingnu.se/wp-content/uploads/2015/08/Screen-Shot-2015-08-22-at-15.17.29.png )

Thank you a gazillion times

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