Y'know, honestly, OG Spider-Man wasn't really all that 'light-hearted' of a character.  I mean, yeah, he wasn't the Punisher or anything, but a lot of the appeal of the Lee/Ditko run was how heavily they leaned on the influence of the soap-opera books they were doing in the 50s and early 60s before applying it to the superhero format.  He'd fire off plenty of zingers when in costume, sure, but Peter Parker was the original teen-angst superhero.