Matter.js animated sprites

Question

I'm getting mad trying to figure out how to put an animated image into a Bodies.rectangle. I've animated the image with CSS and I have a gif version of the image that I want to use. How can I do it?

var char = Bodies.rectangle(90, 549, 84, 78, {
  isStatic: true,
  render: {
    sprite: {
      texture: 'http://i57.tinypic.com/3343zwi.png'
    }
  }
});

This is my declaration of the body that I want to use. Should I use Matter.js for this kind of thing?