function hiDPI(ratio) {
    if (ratio === void 0) {
      ratio = 1.3;
    }
    return "\n    @media only screen and (-webkit-min-device-pixel-ratio: " + ratio + "),\n    only screen and (min--moz-device-pixel-ratio: " + ratio + "),\n    only screen and (-o-min-device-pixel-ratio: " + ratio + "/1),\n    only screen and (min-resolution: " + Math.round(ratio * 96) + "dpi),\n    only screen and (min-resolution: " + ratio + "dppx)\n  ";
  }
Generates a media query to target HiDPI devices.

@example
// Styles as object usage
const styles = {
 [hiDPI(1.5)]: {
   width: 200px;
 }
}

// styled-components usage
const div = styled.div`
  ${hiDPI(1.5)} {
    width: 200px;
  }
`

// CSS as JS Output

'@media only screen and (-webkit-min-device-pixel-ratio: 1.5),
 only screen and (min--moz-device-pixel-ratio: 1.5),
 only screen and (-o-min-device-pixel-ratio: 1.5/1),
 only screen and (min-resolution: 144dpi),
 only screen and (min-resolution: 1.5dppx)': {
  'width': '200px',
}