johnferrie

// https://dvcs.w3.org/hg/FXTF/raw-file/tip/filters/index.html 
//
// grayscale      ex: filter: grayscale(100%);
// sepia          ex: filter: sepia(100%);
// saturate       ex: filter: saturate(0%);
// hue-rotate     ex: filter: hue-rotate(45deg);
// invert         ex: filter: invert(100%);
// brightness     ex: filter: brightness(15%);
// contrast       ex: filter: contrast(200%);
// blur           ex: filter: blur(2px);

johnferrie

//////////////////////////////
// Generalized Media Query Mixin
//
// Requires Sass 3.2+
// Until released:
// (sudo) gem install sass --pre
//////////////////////////////
@mixin media-query($value, $operator: 'min-width', $query: 'screen') {
  @media #{$query} and (#{$operator}: #{$value}) {
    @content;