How to implement similar html page scrubber like Arc90's Readability or Instapaper?

Question

I\'m interested to find out how to scrub a html page and present it nicely -- remove all the clutters and reformat the main text into a very readable format -- like http://lab.a

Answer 1

If the web page or site in question has good use of semantic elements and structure, you could just use a different CSS stylesheet, which can drastically change the layout and display completely.