THE MOST POWERFUL SASS MIXIN EVAR.

one-mixin.scss

// Apply any css property/value pair.
@mixin css(
  $azimuth: null,
  $background: null,
  $background-attachment: null,
  $background-color: null,
  $background-image: null,
  $background-position: null,
  $background-repeat: null,
  $border: null,
  $border-collapse: null,
  $border-color: null,
  $border-spacing: null,
  $border-style: null,
  $border-top: null,
  $border-right: null,
  $border-bottom: null,
  $border-left: null,
  $border-top-color: null,
  $border-right-color: null,
  $border-bottom-color: null,
  $border-left-color: null,
  $border-top-style: null,
  $border-right-style: null,
  $border-bottom-style: null,
  $border-left-style: null,
  $border-top-width: null,
  $border-right-width: null,
  $border-bottom-width: null,
  $border-left-width: null,
  $border-width: null,
  $bottom: null,
  $caption-side: null,
  $clear: null,
  $clip: null,
  $color: null,
  $content: null,
  $counter-increment: null,
  $counter-reset: null,
  $cue: null,
  $cue-after: null,
  $cue-before: null,
  $cursor: null,
  $direction: null,
  $display: null,
  $elevation: null,
  $empty-cells: null,
  $float: null,
  $font: null,
  $font-family: null,
  $font-size: null,
  $font-size-adjust: null,
  $font-stretch: null,
  $font-style: null,
  $font-variant: null,
  $font-weight: null,
  $height: null,
  $left: null,
  $letter-spacing: null,
  $line-height: null,
  $list-style: null,
  $list-style-image: null,
  $list-style-position: null,
  $list-style-type: null,
  $margin: null,
  $margin-top: null,
  $margin-right: null,
  $margin-bottom: null,
  $margin-left: null,
  $marker-offset: null,
  $marks: null,
  $max-height: null,
  $max-width: null,
  $min-height: null,
  $min-width: null,
  $orphans: null,
  $outline: null,
  $outline-color: null,
  $outline-style: null,
  $outline-width: null,
  $overflow: null,
  $padding: null,
  $padding-top: null,
  $padding-right: null,
  $padding-bottom: null,
  $padding-left: null,
  $page: null,
  $page-break-after: null,
  $page-break-before: null,
  $page-break-inside: null,
  $pause: null,
  $pause-after: null,
  $pause-before: null,
  $pitch: null,
  $pitch-range: null,
  $play-during: null,
  $position: null,
  $quotes: null,
  $richness: null,
  $right: null,
  $size: null,
  $speak: null,
  $speak-header: null,
  $speak-numeral: null,
  $speak-punctuation: null,
  $speech-rate: null,
  $stress: null,
  $table-layout: null,
  $text-align: null,
  $text-decoration: null,
  $text-indent: null,
  $text-shadow: null,
  $text-transform: null,
  $top: null,
  $unicode-bidi: null,
  $vertical-align: null,
  $visibility: null,
  $voice-family: null,
  $volume: null,
  $white-space: null,
  $widows: null,
  $width: null,
  $word-spacing: null,
  $z-index: null
) {
  azimuth: $azimuth;
  background: $background;
  background-attachment: $background-attachment;
  background-color: $background-color;
  background-image: $background-image;
  background-position: $background-position;
  background-repeat: $background-repeat;
  border: $border;
  border-collapse: $border-collapse;
  border-color: $border-color;
  border-spacing: $border-spacing;
  border-style: $border-style;
  border-top: $border-top;
  border-right: $border-right;
  border-bottom: $border-bottom;
  border-left: $border-left;
  border-top-color: $border-top-color;
  border-right-color: $border-right-color;
  border-bottom-color: $border-bottom-color;
  border-left-color: $border-left-color;
  border-top-style: $border-top-style;
  border-right-style: $border-right-style;
  border-bottom-style: $border-bottom-style;
  border-left-style: $border-left-style;
  border-top-width: $border-top-width;
  border-right-width: $border-right-width;
  border-bottom-width: $border-bottom-width;
  border-left-width: $border-left-width;
  border-width: $border-width;
  bottom: $bottom;
  caption-side: $caption-side;
  clear: $clear;
  clip: $clip;
  color: $color;
  content: $content;
  counter-increment: $counter-increment;
  counter-reset: $counter-reset;
  cue: $cue;
  cue-after: $cue-after;
  cue-before: $cue-before;
  cursor: $cursor;
  direction: $direction;
  display: $display;
  elevation: $elevation;
  empty-cells: $empty-cells;
  float: $float;
  font: $font;
  font-family: $font-family;
  font-size: $font-size;
  font-size-adjust: $font-size-adjust;
  font-stretch: $font-stretch;
  font-style: $font-style;
  font-variant: $font-variant;
  font-weight: $font-weight;
  height: $height;
  left: $left;
  letter-spacing: $letter-spacing;
  line-height: $line-height;
  list-style: $list-style;
  list-style-image: $list-style-image;
  list-style-position: $list-style-position;
  list-style-type: $list-style-type;
  margin: $margin;
  margin-top: $margin-top;
  margin-right: $margin-right;
  margin-bottom: $margin-bottom;
  margin-left: $margin-left;
  marker-offset: $marker-offset;
  marks: $marks;
  max-height: $max-height;
  max-width: $max-width;
  min-height: $min-height;
  min-width: $min-width;
  orphans: $orphans;
  outline: $outline;
  outline-color: $outline-color;
  outline-style: $outline-style;
  outline-width: $outline-width;
  overflow: $overflow;
  padding: $padding;
  padding-top: $padding-top;
  padding-right: $padding-right;
  padding-bottom: $padding-bottom;
  padding-left: $padding-left;
  page: $page;
  page-break-after: $page-break-after;
  page-break-before: $page-break-before;
  page-break-inside: $page-break-inside;
  pause: $pause;
  pause-after: $pause-after;
  pause-before: $pause-before;
  pitch: $pitch;
  pitch-range: $pitch-range;
  play-during: $play-during;
  position: $position;
  quotes: $quotes;
  richness: $richness;
  right: $right;
  size: $size;
  speak: $speak;
  speak-header: $speak-header;
  speak-numeral: $speak-numeral;
  speak-punctuation: $speak-punctuation;
  speech-rate: $speech-rate;
  stress: $stress;
  table-layout: $table-layout;
  text-align: $text-align;
  text-decoration: $text-decoration;
  text-indent: $text-indent;
  text-shadow: $text-shadow;
  text-transform: $text-transform;
  top: $top;
  unicode-bidi: $unicode-bidi;
  vertical-align: $vertical-align;
  visibility: $visibility;
  voice-family: $voice-family;
  volume: $volume;
  white-space: $white-space;
  widows: $widows;
  width: $width;
  word-spacing: $word-spacing;
  z-index: $z-index;
}

I'll happily accept pull requests. Maybe I should turn it into a plugin...

Next: Write a mixin that can be used to design any website completely, using one single include. I'm thinking a combination of lists and listargs should make it possible. each listarg is a selector string followed by any number of property/value pairs. We could even check those pairs against compass to add cross-browser support. Because, if you're going to misuse Sass, you should make sure to misuse it the same in every browser.

Should the defaults be initial just for giggles? 😂🥰

@castastrophe lol

, that customization is left as an exersize for the reader 😅