// an immediate's parent size. This allows to set a ratio without explicit
// dimensions, as width/height cannot be computed from each other.
@mixin block-ratio ($selector: 'div', $inverted-ratio: math.div(9, 16)) {
// an immediate's parent size. This allows to set a ratio without explicit
// dimensions, as width/height cannot be computed from each other.
@mixin block-ratio ($selector: 'div', $inverted-ratio: math.div(9, 16)) {