Firstly, how do I justify my text? My css file is http://wegotthiscovered.com/wp-content/themes/continuum/style.css, where do I put the code for justifying. Secondly, should I justify? what are pros/cons?
To justify your text use: text-align: justify; You can put that code anywhere. If you want to justify everything put it in the body (CSS) like so: body{font-family:Arial, Helvetica, sans-serif;background:#D1D9DD;width:100%;display:table; text-align: justify;} It's up to you if you want to justify the text.
There are no pros or cons that would come from this, as with text-align: left/right it is whatever you feel looks better on your site, We can only guide you but at the end of the day it's your site and you should do things as you want not others.