CartoDB/cartodb20

// Mixins
// - Necessary SCSS functions
// - Browser support:
//  · IE => 11
//  · Chrome => 21
//  · Sarafi => 6
//  · Firefox => 24
//  · Opera => 12
// --------------------------------------------------

@mixin grayscale() {
  -webkit-filter: grayscale(100%);
  -moz-filter: grayscale(100%);
  -ms-filter: grayscale(100%);
  -o-filter: grayscale(100%);
  filter: url("data:image/svg+xml;utf8,<svg xmlns=\'http://www.w3.org/2000/svg\'><filter id=\'grayscale\'><feColorMatrix type=\'matrix\' values=\'0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0.3333 0.3333 0.3333 0 0 0 0 0 1 0\'/></filter></svg>#grayscale"); /* Firefox 10+, Firefox on Android */
}

@mixin image-2x($image, $width, $height, $x: 0, $y: 0) {
  @media (-webkit-min-device-pixel-ratio: 1.3),
    (min-resolution: 1.3dppx) {
    /* on retina, use image that's scaled by 2 */
    background: url($image);
    background-position: $x $y;
    background-size: $width $height;
  }
}

/* FONT FACE */
@mixin font-face($fontFamily: myFont, $eotFileSrc: 'myFont.eot', $woffFileSrc: 'myFont.woff', $ttfFileSrc: 'myFont.ttf', $svgFileSrc: 'myFont.svg', $svgFontID: '#myFont') {
  font-family: $fontFamily;
  src: url($eotFileSrc) format('eot'), url($woffFileSrc) format('woff'), url($ttfFileSrc) format('truetype'), url($svgFileSrc + $svgFontID) format('svg');
}

@mixin line-clamp($lines) {
  display: -webkit-box;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: $lines;

  &::after {
    content: ' ';
    display: block;
    position: absolute;
    right: 0;
    bottom: 0;
    width: 2 * $sLineHeight-normal;
    height: $sLineHeight-normal;
    background-image: linear-gradient(to right, rgba(#FFF, 0), rgba(#FFF, 1));
  }
}