"Clueless" costume designer Mona May talks about movie's fashion looks as it marks 30th anniversary

It has been 30 years since the classic movie "Clueless" was released. The film is beloved for its characters and iconic costumes, which are the subject of a new book called "The Fashion of Clueless." The movie's costume designer Mona May wrote the book and joined "CBS Mornings" to talk about it and how she developed the individual style of each character.