Fitvids doesn't work with the module video embed field

Hello,

I'm trying to run the module Fitvids with my video field made with the Embed Video Field module in a content type.
The theme that I have right now working is the default Bartik.
I have done all the steps that indicates at the module page:

• Download the module and the library. Js in the appropriate folder.
  Two.
• Enable the module and recognizes fitvids.js.
• Use jQuery 1.7 or above.

I've tried different CSS selectors at configuration of Fitvids but still don't show fluid videos.

I hope you can help me.
A greeting.