SASS: Helpers and mixins for using with SASS

css-sass-helpers.scss

//============================================================
// Typography
//============================================================

// An rem font-size mixin providing fallback to px
@mixin font-size($sizeValue: 1.4) {
    $remValue: $sizeValue;
    $pxValue: ($sizeValue * 10);
    font-size: #{$pxValue}px;
    font-size: #{$remValue}rem;
}

// Requires inline-block or block for proper styling
@mixin text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

//============================================================
// Transforms
//============================================================

@mixin transform($arguments...) {
    -webkit-transform: $arguments;
      -ms-transform: $arguments; // IE9
          transform: $arguments;
}

@mixin transform-origin($arguments...) {
  -webkit-transform-origin: $arguments;
      -ms-transform-origin: $arguments; // IE9
          transform-origin: $arguments;
}

@mixin rotate($arguments...) {
  -webkit-transform: rotate($arguments);
      -ms-transform: rotate($arguments); // IE9
          transform: rotate($arguments);
}

@mixin backface-visibility ($arguments) {
  -webkit-backface-visibility: $arguments;
     -moz-backface-visibility: $arguments;
      -ms-backface-visibility: $arguments;
       -o-backface-visibility: $arguments;
          backface-visibility: $arguments;
}


//============================================================
// Animations
//============================================================

@mixin transition($arguments...) {
    -webkit-transition: $arguments;
            transition: $arguments;
}

@mixin animation($arguments) {
  -webkit-animation: $arguments;
          animation: $arguments;
}

//============================================================
// Gradients
//============================================================

@mixin linear-gradient ($from, $to) {
  background-color: $from;
  background-image: -webkit-linear-gradient(top, $from, $to); /* Chrome 10-25, iOS 5+, Safari 5.1+ */
  background-image:         linear-gradient(to bottom, $from, $to); /* Chrome 26, Firefox 16+, IE 10+, Opera 12.10+ */
}

//============================================================
// Structure
//============================================================

@mixin box-sizing ($arguments) {
  -webkit-box-sizing: $arguments;
     -moz-box-sizing: $arguments;
       -o-box-sizing: $arguments;
          box-sizing: $arguments;
}


//============================================================
//
// Easing
//
// Thanks to Robert Penner for his sterling work on easing,
// and to Matthew Lein for converting these functions into
// approximated cubic-bezier functions. Respect.
//
// @see http://robertpenner.com/
// @see http://matthewlein.com/ceaser/
//
//============================================================

// Cubic
$easeInCubic     :  cubic-bezier(0.550, 0.055, 0.675, 0.190);
$easeOutCubic    :  cubic-bezier(0.215, 0.610, 0.355, 1.000);
$easeInOutCubic  :  cubic-bezier(0.645, 0.045, 0.355, 1.000);

// Circ
$easeInCirc      :  cubic-bezier(0.600, 0.040, 0.980, 0.335);
$easeOutCirc     :  cubic-bezier(0.075, 0.820, 0.165, 1.000);
$easeInOutCirc   :  cubic-bezier(0.785, 0.135, 0.150, 0.860);

// Expo
$easeInExpo      :  cubic-bezier(0.950, 0.050, 0.795, 0.035);
$easeOutExpo     :  cubic-bezier(0.190, 1.000, 0.220, 1.000);
$easeInOutExpo   :  cubic-bezier(1.000, 0.000, 0.000, 1.000);

// Quad
$easeInQuad      :  cubic-bezier(0.550, 0.085, 0.680, 0.530);
$easeOutQuad     :  cubic-bezier(0.250, 0.460, 0.450, 0.940);
$easeInOutQuad   :  cubic-bezier(0.455, 0.030, 0.515, 0.955);

// Quart
$easeInQuart     :  cubic-bezier(0.895, 0.030, 0.685, 0.220);
$easeOutQuart    :  cubic-bezier(0.165, 0.840, 0.440, 1.000);
$easeInOutQuart  :  cubic-bezier(0.770, 0.000, 0.175, 1.000);

// Quint
$easeInQuint     :  cubic-bezier(0.755, 0.050, 0.855, 0.060);
$easeOutQuint    :  cubic-bezier(0.230, 1.000, 0.320, 1.000);
$easeInOutQuint  :  cubic-bezier(0.860, 0.000, 0.070, 1.000);

// Sine
$easeInSine      :  cubic-bezier(0.470, 0.000, 0.745, 0.715);
$easeOutSine     :  cubic-bezier(0.390, 0.575, 0.565, 1.000);
$easeInOutSine   :  cubic-bezier(0.445, 0.050, 0.550, 0.950);

// Back
$easeInBack      :  cubic-bezier(0.600, -0.280, 0.735, 0.045);
$easeOutBack     :  cubic-bezier(0.175,  0.885, 0.320, 1.275);
$easeInOutBack   :  cubic-bezier(0.680, -0.550, 0.265, 1.550);