Oh yes you can, there are many examples of individual components and I made one aggregating some of those in https://picnicss.com/ https://picnicss.com/ , but o

Oh yes you can, there are many examples of individual components and I made one aggregating some of those in https://picnicss.com/ https://picnicss.com/ , but of course it has its limitations and tabs for example are deprecated as the HTML in those becomes funny/fragile. Modal and responsive nav are in the limit of what I consider sane enough to be in the default library.