mixins.scss

@mixin text-shadow ($string: 0 1px 3px rgba(0, 0, 0, 0.25)) {
    text-shadow: $string;
}
@mixin box-shadow ($string) {
    -webkit-box-shadow: $string;
    -moz-box-shadow:    $string;
    box-shadow:         $string;
}
@mixin drop-shadow ($x: 0, $y: 1px, $blur: 2px, $spread: 0, $alpha: 0.25) {
    -webkit-box-shadow: $x $y $blur $spread rgba(0, 0, 0, $alpha);
    -moz-box-shadow:    $x $y $blur $spread rgba(0, 0, 0, $alpha);
    box-shadow:         $x $y $blur $spread rgba(0, 0, 0, $alpha);
}
@mixin inner-shadow ($x: 0, $y: 1px, $blur: 2px, $spread: 0, $alpha: 0.25) {
    -webkit-box-shadow: inset $x $y $blur $spread rgba(0, 0, 0, $alpha);
    -moz-box-shadow:    inset $x $y $blur $spread rgba(0, 0, 0, $alpha);
    box-shadow:         inset $x $y $blur $spread rgba(0, 0, 0, $alpha);
}

@mixin box-sizing ($type: border-box) {
    -webkit-box-sizing: $type;
    -moz-box-sizing:    $type;
    box-sizing:         $type;
}

@mixin border-radius ($radius: 5px) {
    -webkit-border-radius: $radius;
    -moz-border-radius:    $radius;
    -ms-border-radius:     $radius;
    -o-border-radius:      $radius;
    border-radius:         $radius;

    -moz-background-clip:    padding;
    -webkit-background-clip: padding-box;
    background-clip:         padding-box;
}
@mixin border-radiuses ($topright: 0, $bottomright: 0, $bottomleft: 0, $topleft: 0) {
    -webkit-border-top-right-radius:    $topright;
    -webkit-border-bottom-right-radius: $bottomright;
    -webkit-border-bottom-left-radius:  $bottomleft;
    -webkit-border-top-left-radius:     $topleft;

    -moz-border-radius-topright:        $topright;
    -moz-border-radius-bottomright:     $bottomright;
    -moz-border-radius-bottomleft:      $bottomleft;
    -moz-border-radius-topleft:         $topleft;

    border-top-right-radius:            $topright;
    border-bottom-right-radius:         $bottomright;
    border-bottom-left-radius:          $bottomleft;
    border-top-left-radius:             $topleft;

    -moz-background-clip:    padding;
    -webkit-background-clip: padding-box;
    background-clip:         padding-box;
}

@mixin opacity ($opacity: 0.5) {
    -webkit-opacity:    $opacity;
    -moz-opacity:       $opacity;
    opacity:            $opacity;
}

@mixin gradient ($startColor: #eee, $endColor: white) {
    background-color: $startColor;
    background: -webkit-gradient(linear, left top, left bottom, from($startColor), to($endColor));
    background: -webkit-linear-gradient(top, $startColor, $endColor);
    background: -moz-linear-gradient(top, $startColor, $endColor);
    background: -ms-linear-gradient(top, $startColor, $endColor);
    background: -o-linear-gradient(top, $startColor, $endColor);
}
@mixin horizontal-gradient ($startColor: #eee, $endColor: white) {
    background-color: $startColor;
    background-image: -webkit-gradient(linear, left top, right top, from($startColor), to($endColor));
    background-image: -webkit-linear-gradient(left, $startColor, $endColor);
    background-image: -moz-linear-gradient(left, $startColor, $endColor);
    background-image: -ms-linear-gradient(left, $startColor, $endColor);
    background-image: -o-linear-gradient(left, $startColor, $endColor);
}

@mixin animation ($name, $duration: 300ms, $delay: 0, $ease: ease) {
    -webkit-animation: $name $duration $delay $ease;
    -moz-animation:    $name $duration $delay $ease;
    -ms-animation:     $name $duration $delay $ease;
}

@mixin transition ($transition) {
    -webkit-transition: $transition;
    -moz-transition:    $transition;
    -ms-transition:     $transition;
    -o-transition:      $transition;
}
@mixin transform($string){
    -webkit-transform:  $string;
    -moz-transform:     $string;
    -ms-transform:      $string;
    -o-transform:       $string;
}
@mixin scale ($factor) {
    -webkit-transform:  scale($factor);
    -moz-transform:     scale($factor);
    -ms-transform:      scale($factor);
    -o-transform:       scale($factor);
}
@mixin rotate ($deg) {
    -webkit-transform:  rotate($deg);
    -moz-transform:     rotate($deg);
    -ms-transform:      rotate($deg);
    -o-transform:       rotate($deg);
}
@mixin skew ($deg, $deg2) {
    -webkit-transform:  skew($deg, $deg2);
    -moz-transform:     skew($deg, $deg2);
    -ms-transform:      skew($deg, $deg2);
    -o-transform:       skew($deg, $deg2);
}
@mixin translate ($x, $y:0) {
    -webkit-transform:  translate($x, $y);
    -moz-transform:     translate($x, $y);
    -ms-transform:      translate($x, $y);
    -o-transform:       translate($x, $y);
}
@mixin translate3d ($x, $y: 0, $z: 0) {
    -webkit-transform:  translate3d($x, $y, $z);
    -moz-transform:     translate3d($x, $y, $z);
    -ms-transform:      translate3d($x, $y, $z);
    -o-transform:       translate3d($x, $y, $z);
}
@mixin perspective ($value: 1000) {
    -webkit-perspective:    $value;
    -moz-perspective:       $value;
    -ms-perspective:        $value;
    perspective:            $value;
}
@mixin transform-origin ($x:center, $y:center) {
    -webkit-transform-origin: $x $y;
    -moz-transform-origin:    $x $y;
    -ms-transform-origin:     $x $y;
    -o-transform-origin:      $x $y;
}

@mixin reset-box-sizing ($size:content-box) {
  &,
  *,
  *:before,
  *:after {
    @include box-sizing($size);
  }
}

@mixin truncate ($max-width: 250px) {
  max-width: $max-width;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@mixin background-size ($string: contain) {
    -webkit-background-size: $string;
    -moz-background-size: $string;
    -o-background-size: $string;
    background-size: $string;
}

@mixin placeholder ($color: #999) {
    &::-webkit-input-placeholder { /* WebKit browsers */
        color: $color;
    }
    &:-moz-placeholder { /* Mozilla Firefox 4 to 18 */
        color: $color;
    }
    &::-moz-placeholder { /* Mozilla Firefox 19+ */
        color: $color;
    }
    &:-ms-input-placeholder { /* Internet Explorer 10+ */
        color: $color;
    }
}