clipped from: www.noscope.com   

Showing CSS to IE only (The Underscore Hack)


It allows you to show CSS to Internet Explorer only, omitting Mozilla, Safari and Opera.


  • It allows you to write conditional CSS directly in your stylesheet file, and doesn’t require inline styles

  • It works for IE 5.0, 5.5 and 6.0

  • It’s a hack

  • It’s very simple to work with.

  • body {
        background: green; /* show to Mozilla/Safari/Opera */
        _background: red; /* show to IE */
    }

    Cons


  • The CSS won’t validate

  • The hack won’t work for IE5/Mac. For this platform, I recommend the IE5/Mac Band Pass Filter hack