less

less mixin

原文来自：snippets.barretlee.com，只是为了自己学习收集特意fork了一遍。如有侵权，联系删除：i@webcliwn.net。

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.text-shadow (@string: 0 1px 3px rgba(0, 0, 0, 0.25)) {
  text-shadow: @string;
}
.box-shadow (@string) {
  -webkit-box-shadow: @string;
  -moz-box-shadow:    @string;
  box-shadow:         @string;
}
.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);
}
.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);
}

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

.border-radius (@radius: 5px) {
  -webkit-border-radius: @radius;
  -moz-border-radius:    @radius;
  border-radius:         @radius;

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

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

.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);
}
.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);
}

.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;
}

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