.vendor(@property, @value) {
    -webkit-@{property}: @value;
     -khtml-@{property}: @value;
       -moz-@{property}: @value;
            @{property}: @value;
}

.bwp-mixin-button(@color; @bgcolor; @bordercolor:'') {
	color: @color;
	text-shadow: 0px 1px 1px darken(@bgcolor, 10%);
	background: @bgcolor none repeat scroll 0 0;

	border-color: darken(@bgcolor, 10%);
	box-shadow: 0 1px 0 darken(@bgcolor, 10%);

	& when (iscolor(@bordercolor)) {
		border-color: @bordercolor;
		box-shadow: 0 1px 0 @bordercolor;
	}

	&:hover, &:active {
		background: lighten(@bgcolor, 3%) none repeat scroll 0 0;
		border-color: darken(@bgcolor, 15%);

		& when (iscolor(@bordercolor)) {
			border-color: darken(@bordercolor, 10%);
		}
	}

	&:active {
		box-shadow: 0 2px 5px -3px fade(darken(@bgcolor, 50%), 50%) inset;
	}
}