How was the 1960's counterculture different from the youth of the 1950's?

The 1960's counterculture was all about rebelling against authority. Extramarital sex, illegal drugs, and new types of music were part of this counterculture. The youth of the 1950's by comparison were a quiet generation. Youth of every generation rebel against parental authority, but the rebellion in the 1950's was much milder.