What is the author's style in Jabberwocky by Lewis Carroll?

Any song that tells a story is a ballad. Originally intended for singing, ballads became "poetry" when the English poet Sir Walter Scott began collecting them to write down, so they would not be forgotten. This is a typical form for stories about knights, which "Jabberwocky" purports to be, although it is considered a literary ballad, to be read rather than sung.