angular - ng-bootstrap for Angular 11 partial collapse

Question

I'm trying to create a read more, read less block on my page, the ng-bootstrap collapse widget would be perfect, but I can't get it to be partially collapsed ie showing some text and would be expandable to show the full content. I know it should be possible with Bootstrap 4 which the ng-bootstrap is using. I tried to find a custom library for such thing, but there is nothing for newer angular. Any help would be greatly appreciated.

Thanks

标签： angularng-bootstrap