You want to add a fade transition between each page on your websit, this means that when a user is on your website, and they click another link, a nice fade will happen between the pages during the transition. Be warned that when I tested this there seemed to be an overhead on the browser (IE9 ) doing the fade. However it did look pretty.
Simple add the TXT below into the <head> section of you page and the fade will be inserted.
You will now see a transition between you pages that have these meta tags.