[_sefg]

fixed it for you: http://codepen.io/anon/pen/PpJwKL

[chasingtheflow]

Nice! Though it looks like in your version the blink is happening from top-to-bottom as opposed to collapsing in the middle. I like the blink after the toggle, but the actual blink animation in the original in preferable imo.

[tbirrell]

If you slow down the original, it does the same thing. Optical illusion I think.

Edit: only the second blink is funky. The first is how you recall.

[chrisgannon]

The first (happy) blink is fractionally slower than the sad blink on purpose. I'm obsessive about details.

[neogodless]

I think the blinking is actually much more effective this way, too!

[chrisgannon]

Yes you messed up the transform origin.