How to create Hover ANIMATION Button like this?

Please take a look at this navigation: http://beta.viewcms.info/mint/ And you can see the hover animation!

How to create the exactly same hover menu like that?

Sorry for bad E开发者_JS百科nglish

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I did a little menu for you, there you have the classes, html, and jquery you need to add.

JsFiddle menu

Edit: I did it in 5 minutes, and didn't checked it, if it presents any problem, just let me now.