I get the following message in Chrome:
Consider using 'dppx' units instead of 'dpi', as in CSS 'dpi' means dots-per-CSS-inch, not dots-per-physical-inch, so does not correspond to the actual 'dpi' of a screen. In media query expression: only screen and (-webkit-min-device-pixel-ratio: 2), only screen and (min-resolution: 144dpi)
When I click on the referenced location it takes me to the first line of the HTML file which does not have any code. I did a search for the 'dpi' but didn't find anything. Please advice.