gilfillan9

CSS media queries themselves don't have the capability to send any tracking information back, but the effects they cause absolutely do. Consider:

  @media (min-width: 600px) { .pixel { background-image: url("/pixel?width=600"); } }
  @media (min-width: 700px) { .pixel { background-image: url("/pixel?width=700"); } }

You could add as many of these media queries as you like to increase the resolution of your tracking. Combine this with the min-height media query and you can get the absolute size of the view port.