So much space that can not be used on Comment Area

Hello great Catch Team please take a look: https://www.dropbox.com/s/fmli5g2dwdot0bn/Screenshot%202018-02-07%2002.17.23.png?dl=0 How can I move the comments on the left, i see so much space on the left that can not be used how can i solve it? I don't user avatars i want to make the comments area at maximum width but on the left i see so much space that can not be used, any idea? Link: https://www.vitamineproteine.com/2013/01/10/extrasistole-e-cuore-sintomi-cause-rimedi/#comments