@mixin perspective($value) {
    -webkit-perspective: $value;
    -moz-perspective   : $value;
    -o-perspective     : $value;
    -ms-perspective    : $value;
    perspective        : $value;
}

@mixin transitions($time, $type) {
    -webkit-transition: all $time $type;
    -moz-transition   : all $time $type;
    -o-transition     : all $time $type;
    -ms-transition    : all $time $type;
    transition        : all $time $type;
}

@mixin transitions-property($property, $time, $type) {
    -webkit-transition: $property $time $type;
    -moz-transition   : $property $time $type;
    -o-transition     : $property $time $type;
    -ms-transition    : $property $time $type;
    transition        : $property $time $type;
}

@mixin transform-style($type) {
    -webkit-transform-style: $type;
    -moz-transform-style   : $type;
    -o-transform-style     : $type;
    -ms-transform-style    : $type;
    transform-style        : $type;
}

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

@mixin rotateY-180() {
    -webkit-transform: rotateY(180deg);
    -moz-transform   : rotateY(180deg);
    -o-transform     : rotateY(180deg);
    -ms-transform    : rotateY(180deg);
    transform        : rotateY(180deg);
}