11-retina-ready.scss

// EASY RETINA-READY IMAGES USING SCSS

// Ref: http://37signals.com/svn/posts/3271-easy-retina-ready-images-using-scss


// This mixin detects high resolution displays.
// It centralizes the definition of high resolution displays
// so it can easily be changed globally as more devices come to market
@mixin image-2x($image, $width, $height) {
  @media (min--moz-device-pixel-ratio: 1.3),
         (-o-min-device-pixel-ratio: 2.6/2),
         (-webkit-min-device-pixel-ratio: 1.3),
         (min-device-pixel-ratio: 1.3),
         (min-resolution: 1.3dppx) {
    /* on retina, use image that's scaled by 2 */
    background-image: url($image);
    background-size: $width $height;
  }
}



div.logo {
  background: url("logo.png") no-repeat;
  @include image-2x("logo2x.png", 100px, 25px);
}