Howdy, On this site I would like to add left side padding

Howdy,

On this site I would like to add left side padding to the "Related Posts" and "Share This" content areas. I tried adding padding, but it made all of the page content indent.

Example Blog Post: http://movementismyteacher.com/2015/11/18/the-ultimate-cause-of-pain/

Cheers,
Casper