title: Advantages and disadvantages of using ID selectors in CSS?
body: <p><a href="http://screwlewse.com/2010/07/dont-use-id-selectors-in-css/" rel="nofollow">This post</a> talked about the disadvantage about using ID selectors in CSS. Do you more about the advantages and disadvantages about using ID selectors in CSS? When should I use ID selectors and when should I use class selectors? Thanks.</p>