What does `a > b` mean?

Question

I\'m reading a tutorial about creating a shoutbox with jquery, php and ajax. In the jquery code, it creates a variable like this

var messageList = $(\".content &         


        

Answer 1

It indicates the shoutbox should be applied to a "ul" thats the immediate child of ".content". Without the ">" symbol, it applies to any ul thats a child of .content