CSS Cursor as pointer not working

Working on website development for quite a bit now. Just had come across a style sheet issue in a web page. With the following style sheet:-

.linkbtn
{
    cursor:pointer;
    text-decoration: underline;
}

What would anyone expect for this simple html as :

Find

Certainly to show a different cursor when user hovers on the text. Yes it works on IE !! but not on firefox & chrome.

Ok lets debug and see what's happening, the css does show only

.linkbtn
{
    text-decoration: underline;
}

Does'nt make sense at all. does it ? Ok Now I have modifed the html to :

Find

Hurray ! it worked by just re-arranging the class & id attribute.

Three things are certain:
Death, taxes, and lost data.
Guess which has occurred.
~David Dixon, 1998, winning entry of the Haiku Error Messages 21st Challenge by Charlie Varon and Jim Rosenau, sponsored by Salon.com