First, sorry, my english is not good.
I have a CSS for all my image posts. I added the Facebook, Twitter, Pinterest and Tumblr buttons. But the Tumblr button get the CSS from my image posts.
I don't want that, but I try to change it, but I can't. I don't find where I must change the code.
How I can change the CSS to remove de border?
My site: http://rufi.nosolowindows.com