Jane Eyre was a widely available novel which dealt with the both the lower and upper classes during Jane's journey.
DOMESTIC FICTION - The novel revolves around a marriage plot which is used as a political story, like in DESIRE AND DOMESTIC FICTION by Nancy Armstrong
SEPARATE SPHERES are important to the novel, with Jane being relegated to the private sphere while interacting with men who possess more systemic power than her
SEXUALITY As a coming of age story Jane Eyre deals with it's protagonists sexuality, mainly through the subtext of the marriage plot
CLASS RELATIONS - Jane's interactions with Rochester represent relations between lower and upper class, especially with how Rochester treats her at first
RACE AND EMPIRE - The narrative of the book, as well as Rochester and Jane, both treat Bertha Mason as a monster because of her race. Her marriage to Rochester only exists because of Empire.