Hi Newbie here so sorry for the question which is probably been asked before. I am trying to get my own website to start ranking higher on google etc and so far not so good.... I have heard something about blackhat techinques being frowned upon by google but i noticed on a website I made a purchase on recently had some form of hiding key words.. There is a button at the bottom of the page that is called "resources" when clicking on the button some paragraphs appear containing a very high density of what i guess are the key words the site uses.... is this allowed? and is this something that is good to do on my site to get higher in the rankings?