multi-line text ellipsis mixin

ellipsis

//usage: @include ellipsis(3);
@mixin ellipsis($lineNumber, $lineHeight: 1.4em) {
    display: -webkit-box;
    line-height: $lineHeight;
    max-height: $lineNumber * $lineHeight;
    overflow: hidden;
    -webkit-line-clamp: $lineNumber;
    -webkit-box-orient: vertical;
}