Jquery not working in codepen

Hi all,

I am getting mad trying to make things work in codepen. I dont know what else to do, but I don’t know why jquery doesnt work in my codepen.

Here is my link: https://codepen.io/ciberlook/pen/aZpgOe

Can anybody help me?

Thx in advance!

Missing parentheses around document.

ohh, my god!! thank you very much!!!

I was driving crazy!!