.border-radius (@radius) {
    -webkit-border-radius: @radius; /* Saf3-4, iOS 1-3.2, Android <1.6 */
       -moz-border-radius: @radius; /* FF1-3.6 */
            border-radius: @radius; /* Opera 10.5, IE9, Saf5, Chrome, FF4, iOS 4, Android 2.1+ */
}


.background-clip () {
    -webkit-background-clip: padding-box;
       -moz-background-clip: padding;
            background-clip: padding-box;
}


.box-shadow (@shadow) {
    -webkit-box-shadow: @shadow; /* Saf3-4 */
       -moz-box-shadow: @shadow; /* FF3.5 - 3.6 */
            box-shadow: @shadow; /* Opera 10.5, IE9, FF4+, Chrome 10+ */
}


.transition (@transition) {
    -webkit-transition: @transition; /* Saf3.2+, Chrome */
       -moz-transition: @transition; /* FF4+ */
        -ms-transition: @transition; /* IE10? */
         -o-transition: @transition; /* Opera 10.5+ */
            transition: @transition;
}


.transform (@transform) {
    -webkit-transform: @transform; /* Saf3.1+, Chrome */
       -moz-transform: @transform; /* FF3.5+ */
        -ms-transform: @transform; /* IE9 */
         -o-transform: @transform; /* Opera 10.5 */
            transform: @transform;
                 zoom: 1;
}


.vert-gradient (@top, @bottom) {
    background-color: @top;
    background-image: -webkit-gradient(linear, left top, left bottom, from(@top), to(@bottom)); /* Saf4+, Chrome */
    background-image: -webkit-linear-gradient(top, @top, @bottom); /* Chrome 10+, Saf5.1+, iOS 5+ */
    background-image:    -moz-linear-gradient(top, @top, @bottom); /* FF3.6 */
    background-image:     -ms-linear-gradient(top, @top, @bottom); /* IE10 */
    background-image:      -o-linear-gradient(top, @top, @bottom); /* Opera 11.10+ */
    background-image:         linear-gradient(top, @top, @bottom);
}


.background-size (@size) {
    -webkit-background-size: @size; /* Saf3-4 */
       -moz-background-size: @size; /* FF3.6 */
            background-size: @size; /* Opera, IE9, Saf5, Chrome, FF4 */
}