title: Have emacs highlight characters over 80?
body: <p>I have seen some solutions on here which will highlight an entire line if it goes beyond 80 characters, and also to do a <code>line-wrap</code> once the line becomes greater than 80. What I would like to do is to edit my <code>.emacs</code> file so that any character beyond 80 takes on a different background. So the first 80 characters will have my current emacs background, then characters > 80 would have  a black background say. Can someone point me in the right directions? Thanks!</p>