Type a unique name in the Device Name text box such as Test101. This page lists a ton of different devices and media queries that would specifically target that device. In simpler terms, this tells the browser how many of the screen's actual pixels should be used to draw a single CSS pixel. Found insideCovering HTML5, CSS3, and ES6, Sams Teach Yourself Julie C. Meloni, Jennifer Kyrnin. Ãmedia ( -webkit-min-device-pixel - ratio: 2), (min-resolution: 192dpi) { }