$color: red;
$position: 50%;
$x: 0;
@mixin foo() {
image: url(foo.png);
}
div {
background: {
something: {
color: green;
}
@if (type-of($color) == "color") {
color: $color;
}
@if (type-of($position) == "number") {
position: $position;
@include foo();
}
groo: foo;
}
width: $x;
}