CTA button not centered (previous answer not helping)

Hi all,

I have removed one of the CTA buttons as I only need one for now, however, it is slightyl off the center to the left side. While almost unnoticeable on large screens, it is quite visible on mobile view:

http://s32.postimg.org/9lf1q9ced/snap.png

I have tried using the following code:

.stat_content_right .cta_buttons{
text-align:center;
}

But it did not change anything.

Any ideas?
Thanks!