[jQuery] change the css into JQuery format( .menu :hover > a )

[jQuery] change the css into JQuery format( .menu :hover > a )


Hi all,
I'm a new guy on JQuery, now reading the JQuery in action,
and I encounter with one issue:
.menu :hover > a { ...}
anyone who has idea how to change into JQuery format?
or is that possible with jquery,
will be very appreciate,tks