Blame view

sass/bootstrap/mixins/_image.scss 1.18 KB
4569bbd1   liuqimichale   init website
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
  // Image Mixins
  // - Responsive image
  // - Retina image
  
  
  // Responsive image
  //
  // Keep images from scaling beyond the width of their parents.
  @mixin img-responsive($display: block) {
    display: $display;
    max-width: 100%; // Part 1: Set a maximum relative to the parent
    height: auto; // Part 2: Scale the height according to the width, otherwise you get stretching
  }
  
  
  // Retina image
  //
  // Short retina mixin for setting background-image and -size. Note that the
  // spelling of `min--moz-device-pixel-ratio` is intentional.
  @mixin img-retina($file-1x, $file-2x, $width-1x, $height-1x) {
    background-image: url(if($bootstrap-sass-asset-helper, twbs-image-path("#{$file-1x}"), "#{$file-1x}"));
  
    @media
    only screen and (-webkit-min-device-pixel-ratio: 2),
    only screen and (   min--moz-device-pixel-ratio: 2),
    only screen and (     -o-min-device-pixel-ratio: 2/1),
    only screen and (        min-device-pixel-ratio: 2),
    only screen and (                min-resolution: 192dpi),
    only screen and (                min-resolution: 2dppx) {
      background-image: url(if($bootstrap-sass-asset-helper, twbs-image-path("#{$file-2x}"), "#{$file-2x}"));
      background-size: $width-1x $height-1x;
    }
  }