// Resize anything

.resize(@direction: y) {
    // Options: horizontal, vertical, both
    & when (@direction = xy), (@direction = both) {
        resize: both;
    }

    & when (@direction = x), (@direction = horizontal) {
        resize: horizontal;
    }

    & when (@direction = y), (@direction = vertical) {
        resize: vertical;
    }

    overflow: auto; // Per CSS3 UI, `resize` only applies when `overflow` isn't `visible`
}