jQuery sliding arrow under menu

问题

This one gonna be hard, because I have no demo of this, but I believe you will get what I'm saying ;)

There are many sites with an arrow below active menu item (the site you're browsing NOW). The point is when you hover on any menu item - the arrow is sliding from the active one to the hovered one and comes back on mouseout (or stays here after clicking).

How does it work?

I guess the arrow below active element is just additional class added while refreshing page to display the new content? But what about sliding? :)

Thanks a lot.

回答1:

Try Googling "jquery lavalamp"

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来源：https://stackoverflow.com/questions/4799959/jquery-sliding-arrow-under-menu