CSS Battle

My css battle (cssbattle.dev) code, includes easy-to-read and/or optimised code

"Optimised" code

obviously not the shortest solution
shortest I could write when trying the qn
might shorten it further (sooner or later) - except those qns where the code is truly optimised (eg. Battle 1 Target 1)
in the format "optimised_.txt"

"Easy-to-read" code

used some shortcuts like "body" -> "*"
in the format "easy2read_.txt"

Truly optimised code (eg. same as leaderboard no.1)

Battle 1 Target 1