|  | // Vendor Prefixes
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							|  | //
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							|  | // All vendor mixins are deprecated as of v3.2.0 due to the introduction of
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							|  | // Autoprefixer in our Gruntfile. They will be removed in v4.
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							|  | 
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							|  | // - Animations
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							|  | // - Backface visibility
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							|  | // - Box shadow
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							|  | // - Box sizing
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							|  | // - Content columns
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							|  | // - Hyphens
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							|  | // - Placeholder text
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							|  | // - Transformations
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							|  | // - Transitions
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							|  | // - User Select
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							|  | 
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							|  | 
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							|  | // Animations
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							|  | .animation(@animation) {
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							|  |   -webkit-animation: @animation;
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							|  |        -o-animation: @animation;
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							|  |           animation: @animation;
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							|  | }
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							|  | .animation-name(@name) {
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							|  |   -webkit-animation-name: @name;
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							|  |           animation-name: @name;
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							|  | }
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							|  | .animation-duration(@duration) {
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							|  |   -webkit-animation-duration: @duration;
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							|  |           animation-duration: @duration;
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							|  | }
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							|  | .animation-timing-function(@timing-function) {
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							|  |   -webkit-animation-timing-function: @timing-function;
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							|  |           animation-timing-function: @timing-function;
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							|  | }
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							|  | .animation-delay(@delay) {
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							|  |   -webkit-animation-delay: @delay;
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							|  |           animation-delay: @delay;
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							|  | }
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							|  | .animation-iteration-count(@iteration-count) {
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							|  |   -webkit-animation-iteration-count: @iteration-count;
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							|  |           animation-iteration-count: @iteration-count;
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							|  | }
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							|  | .animation-direction(@direction) {
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							|  |   -webkit-animation-direction: @direction;
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							|  |           animation-direction: @direction;
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							|  | }
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							|  | .animation-fill-mode(@fill-mode) {
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							|  |   -webkit-animation-fill-mode: @fill-mode;
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							|  |           animation-fill-mode: @fill-mode;
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							|  | }
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							|  | 
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							|  | // Backface visibility
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							|  | // Prevent browsers from flickering when using CSS 3D transforms.
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							|  | // Default value is `visible`, but can be changed to `hidden`
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							|  | 
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							|  | .backface-visibility(@visibility){
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							|  |   -webkit-backface-visibility: @visibility;
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							|  |      -moz-backface-visibility: @visibility;
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							|  |           backface-visibility: @visibility;
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							|  | }
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							|  | 
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							|  | // Drop shadows
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							|  | //
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							|  | // Note: Deprecated `.box-shadow()` as of v3.1.0 since all of Bootstrap's
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							|  | // supported browsers that have box shadow capabilities now support it.
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							|  | 
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							|  | .box-shadow(@shadow) {
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							|  |   -webkit-box-shadow: @shadow; // iOS <4.3 & Android <4.1
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							|  |           box-shadow: @shadow;
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							|  | }
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							|  | 
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							|  | // Box sizing
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							|  | .box-sizing(@boxmodel) {
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							|  |   -webkit-box-sizing: @boxmodel;
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							|  |      -moz-box-sizing: @boxmodel;
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							|  |           box-sizing: @boxmodel;
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							|  | }
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							|  | 
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							|  | // CSS3 Content Columns
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							|  | .content-columns(@column-count; @column-gap: @grid-gutter-width) {
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							|  |   -webkit-column-count: @column-count;
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							|  |      -moz-column-count: @column-count;
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							|  |           column-count: @column-count;
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							|  |   -webkit-column-gap: @column-gap;
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							|  |      -moz-column-gap: @column-gap;
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							|  |           column-gap: @column-gap;
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							|  | }
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							|  | 
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							|  | // Optional hyphenation
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							|  | .hyphens(@mode: auto) {
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							|  |   word-wrap: break-word;
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							|  |   -webkit-hyphens: @mode;
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							|  |      -moz-hyphens: @mode;
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							|  |       -ms-hyphens: @mode; // IE10+
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							|  |        -o-hyphens: @mode;
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							|  |           hyphens: @mode;
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							|  | }
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							|  | 
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							|  | // Placeholder text
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							|  | .placeholder(@color: @input-color-placeholder) {
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							|  |   &::-moz-placeholder           { color: @color;   // Firefox
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							|  |                                   opacity: 1; } // See https://github.com/twbs/bootstrap/pull/11526
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							|  |   &:-ms-input-placeholder       { color: @color; } // Internet Explorer 10+
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							|  |   &::-webkit-input-placeholder  { color: @color; } // Safari and Chrome
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							|  | }
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							|  | 
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							|  | // Transformations
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							|  | .scale(@ratio) {
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							|  |   -webkit-transform: scale(@ratio);
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							|  |       -ms-transform: scale(@ratio); // IE9 only
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							|  |        -o-transform: scale(@ratio);
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							|  |           transform: scale(@ratio);
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							|  | }
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							|  | .scale(@ratioX; @ratioY) {
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							|  |   -webkit-transform: scale(@ratioX, @ratioY);
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							|  |       -ms-transform: scale(@ratioX, @ratioY); // IE9 only
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							|  |        -o-transform: scale(@ratioX, @ratioY);
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							|  |           transform: scale(@ratioX, @ratioY);
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							|  | }
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							|  | .scaleX(@ratio) {
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							|  |   -webkit-transform: scaleX(@ratio);
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							|  |       -ms-transform: scaleX(@ratio); // IE9 only
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							|  |        -o-transform: scaleX(@ratio);
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							|  |           transform: scaleX(@ratio);
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							|  | }
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							|  | .scaleY(@ratio) {
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							|  |   -webkit-transform: scaleY(@ratio);
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							|  |       -ms-transform: scaleY(@ratio); // IE9 only
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							|  |        -o-transform: scaleY(@ratio);
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							|  |           transform: scaleY(@ratio);
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							|  | }
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							|  | .skew(@x; @y) {
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							|  |   -webkit-transform: skewX(@x) skewY(@y);
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							|  |       -ms-transform: skewX(@x) skewY(@y); // See https://github.com/twbs/bootstrap/issues/4885; IE9+
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							|  |        -o-transform: skewX(@x) skewY(@y);
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							|  |           transform: skewX(@x) skewY(@y);
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							|  | }
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							|  | .translate(@x; @y) {
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							|  |   -webkit-transform: translate(@x, @y);
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							|  |       -ms-transform: translate(@x, @y); // IE9 only
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							|  |        -o-transform: translate(@x, @y);
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							|  |           transform: translate(@x, @y);
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							|  | }
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							|  | .translate3d(@x; @y; @z) {
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							|  |   -webkit-transform: translate3d(@x, @y, @z);
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							|  |           transform: translate3d(@x, @y, @z);
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							|  | }
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							|  | .rotate(@degrees) {
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							|  |   -webkit-transform: rotate(@degrees);
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							|  |       -ms-transform: rotate(@degrees); // IE9 only
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							|  |        -o-transform: rotate(@degrees);
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							|  |           transform: rotate(@degrees);
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							|  | }
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							|  | .rotateX(@degrees) {
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							|  |   -webkit-transform: rotateX(@degrees);
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							|  |       -ms-transform: rotateX(@degrees); // IE9 only
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							|  |        -o-transform: rotateX(@degrees);
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							|  |           transform: rotateX(@degrees);
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							|  | }
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							|  | .rotateY(@degrees) {
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							|  |   -webkit-transform: rotateY(@degrees);
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							|  |       -ms-transform: rotateY(@degrees); // IE9 only
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							|  |        -o-transform: rotateY(@degrees);
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							|  |           transform: rotateY(@degrees);
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							|  | }
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							|  | .perspective(@perspective) {
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							|  |   -webkit-perspective: @perspective;
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							|  |      -moz-perspective: @perspective;
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							|  |           perspective: @perspective;
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							|  | }
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							|  | .perspective-origin(@perspective) {
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							|  |   -webkit-perspective-origin: @perspective;
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							|  |      -moz-perspective-origin: @perspective;
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							|  |           perspective-origin: @perspective;
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							|  | }
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							|  | .transform-origin(@origin) {
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							|  |   -webkit-transform-origin: @origin;
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							|  |      -moz-transform-origin: @origin;
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							|  |       -ms-transform-origin: @origin; // IE9 only
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							|  |           transform-origin: @origin;
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							|  | }
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							|  | 
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							|  | 
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							|  | // Transitions
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							|  | 
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							|  | .transition(@transition) {
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							|  |   -webkit-transition: @transition;
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							|  |        -o-transition: @transition;
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							|  |           transition: @transition;
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							|  | }
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							|  | .transition-property(@transition-property) {
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							|  |   -webkit-transition-property: @transition-property;
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							|  |           transition-property: @transition-property;
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							|  | }
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							|  | .transition-delay(@transition-delay) {
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							|  |   -webkit-transition-delay: @transition-delay;
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							|  |           transition-delay: @transition-delay;
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							|  | }
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							|  | .transition-duration(@transition-duration) {
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							|  |   -webkit-transition-duration: @transition-duration;
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							|  |           transition-duration: @transition-duration;
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							|  | }
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							|  | .transition-timing-function(@timing-function) {
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							|  |   -webkit-transition-timing-function: @timing-function;
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							|  |           transition-timing-function: @timing-function;
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							|  | }
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							|  | .transition-transform(@transition) {
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							|  |   -webkit-transition: -webkit-transform @transition;
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							|  |      -moz-transition: -moz-transform @transition;
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							|  |        -o-transition: -o-transform @transition;
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							|  |           transition: transform @transition;
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							|  | }
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							|  | 
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							|  | 
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							|  | // User select
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							|  | // For selecting text on the page
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							|  | 
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							|  | .user-select(@select) {
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							|  |   -webkit-user-select: @select;
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							|  |      -moz-user-select: @select;
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							|  |       -ms-user-select: @select; // IE10+
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							|  |           user-select: @select;
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							|  | }
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