title: How to add Pure CSS Parallax Scrolling
body: <p>I would like to add some pure CSS parallax scrolling functionality to my website, but everything I've tried doesn't seem to work. I've searched here for answers too, but nothing answers my question. Does anybody know how I can take this code: <a href="http://wolfleader116.github.io/" rel="nofollow">http://wolfleader116.github.io/</a>
  (Sorry, the Doctype declaration isn't indented like that in the actual file.)
  and add a pure CSS parallax scrolling feature so that the background scrolls at half speed? Thanks!</p>