@rounded-corners {
	border-radius: 10px;
}

.bold {
	@font-size: 20px;
	font-size: @font-size;
	font-weight: bold;
}

body #window {
	@rounded-corners;
	.bold;
	line-height: @font-size * 1.5;
}

#bundle {
  .button {
    display: block;
    border: 1px solid black;
    background-color: grey;
    &:hover { background-color: white }
  }
}
#header a {
  color: orange;
  #bundle > .button; // mixin the button class
}

div {
	@abstract {
		hello: world;
		b {
			color: blue;
		}
	}

	@abstract > b;
	@abstract;
}

@poop {
	big: baby;
}

body {
	div;
}

// not using > to list mixins

.hello {
  .world {
    color: blue;
  }
}

.foobar {
  .hello .world;
}


.butter {
	.this .one .isnt .found;
}


// arguments

.spam(@something: 100, @dad: land) {
	@wow: 23434;
    foo: @arguments;
    bar: @arguments;
}

.eggs {
    .spam(1px, 2px);
    .spam();
}

.first(@one, @two, @three, @four: cool) {
	cool: @arguments;
}

#hello {
	.first(one, two, three);
}

#hello-important {
	.first(one, two, three) !important;	
}

.rad(@name) {
	cool: @arguments;
}

#world {
	@hello: "world";
	.rad("@{hello}");
}

.second(@x, @y:skip, @z: me) {
	things: @arguments;
}

#another {
	.second(red, blue, green);
	.second(red blue green);
}


.another(@x, @y:skip, @z:me) {
  .cool {
    color: @arguments;
  }
}

#day {
	.another(one,two, three);
	.another(one two three);
}