_image.scss 1.2 KB

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