Here are a few test cases for the curious case of min-resolution: 0[unit].

This test page shows that the following media queries do not work, even though arithmetically speaking they should:

@media (min-resolution: 0dpi) and (max-resolution: 200dpi)
@media (min-resolution: 0dpcm) and (max-resolution: 200dpcm)

Replacing the 0 by 0.1 works.

• Between 0 and 200 dpi works
• Between 0 and 200 dpi does not work
• Between 0.1 and 200 dpi works
• Between 0.1 and 200 dpi does not work
• Between 0 and 200 dpcm works
• Between 0 and 200 dpcm does not work
• Between 0.1 and 200 dpcm works
• Between 0.1 and 200 dpcm does not work

Tested in Firefox 16, Opera 12.02 for Mac, and IE10 for Windows 8. The WebKit-based browsers do not support the resolution media query at all.