Is there a way to allow transition animation?

I'm trying to achieve something like this where the div expands from the center to left and right: `http://jsfiddle.net/SNzgs/1/`.

I am currently using 
`  velocity(el, { scale: [1, 0], opacity: [ 1, "easeInSine", 0 ]}, {
        duration: 800,
      })` but it doesn't give me the desired effect. 