// from http://css3please.com/
.box-round(@radius) {
	-webkit-border-radius: @radius; // Android ≤ 1.6, iOS 1-3.2, Safari 3-4
	border-radius: @radius; // Android 2.1+, Chrome, Firefox 4+, IE 9+, iOS 4+, Opera 10.50+, Safari 5+

	// useful if you don't want a bg color from leaking outside the border:
	background-clip: padding-box; // Android 2.2+, Chrome, Firefox 4+, IE 9+, iOS 4+, Opera 10.50+, Safari 4+
}

.unselectable() {
	-moz-user-select: -moz-none;
	-khtml-user-select: none;
	-webkit-user-select: none;
	-o-user-select: none;
	user-select: none;
}

// from http://stackoverflow.com/a/12178019/323407
.fade-out(@backgroundColor: white) {
	@invisible: fadeout(@backgroundColor, 100%);
	background-image: linear-gradient(to bottom, @invisible 0%, @backgroundColor 100%); // W3C
	background-image: -moz-linear-gradient(top, @invisible 0%, @backgroundColor 100%); // FF3.6+
	background-image: -webkit-gradient(linear, left top, left bottom, color-stop(0%, @invisible),
		color-stop(100%, @backgroundColor)); // Chrome,Safari4+
	background-image: -webkit-linear-gradient(top, @invisible 0%, @backgroundColor 100%); // Chrome10+,Safari5.1+
	background-image: -o-linear-gradient(top, @invisible 0%, @backgroundColor 100%); // Opera 11.10+
	background-image: -ms-linear-gradient(top, @invisible 0%, @backgroundColor 100%); // IE10+
	filter: e(%("progid:DXImageTransform.Microsoft.gradient( startColorstr='#00ffffff', endColorstr='#ffffff',GradientType=0 )",
		rgbahex(@invisible), rgbahex(@backgroundColor))); // IE6-9
}

.rotate(@degrees: 45deg) {
    -webkit-transform: rotate(@degrees);
    -moz-transform: rotate(@degrees);
    -ms-transform: rotate(@degrees);
    -o-transform: rotate(@degrees);
    transform: rotate(@degrees);

    filter:  progid:DXImageTransform.Microsoft.BasicImage(rotation=(@degrees / 90.0));
	-ms-filter: "progid:DXImageTransform.Microsoft.BasicImage(rotation=(@degrees / 90.0))";
}