Bruce Lee's style of martial art is actually not strictly a style at all.

In his book The Tao of Jeet Kune Do he is quite insistent about this point, citing that one of the problems with styles of martial arts was their inflexibility. Bruce Lee was more concerned with what was practical and effective than what was traditionally part of any style of martial art. "Jeet Kune Do" was just a convenient name with which to label his sytem of approaching combat.