superheroes.css (v2)

#DickGrayson::before {
  content: "Robin";
}

#DickGrayson::after {
  content: "Nightwing";
}

/************/

.Robin:nth-of-type(1) { content: "Dick Grayson"; }

.Robin:nth-of-type(2) { content: "Jason Todd"; }

.Robin:nth-of-type(3) { content: "Tim Drake"; }

.Robin:nth-of-type(4) { content: "Stephanie Brown"; }

.Robin:nth-of-type(5) { content: "Damian Wayne"; }

/************/

#Krypton > :last-child {
  content: "Superman";
}

/************/

#RasAlGhul > :nth-child(1) + #Batman > ::after {
  content: "Damian Wayne";
}

/************/

#Aquaman {
  speak-as: fish;
}

/************/

#WandaMaximoff ~ * {
  all: unset;
  transform: scaleX(-1) rotate(180deg);
  order: revert;
  display: flex;
  align-items: unsafe center;
  justify-content: revert-layer;
  will-change: all;
}

/************/

#DinahDrake,
#DinahLance {
  color: #000;
  volume: x-loud;
}

#OliverQueen {
  content: "\2192";
  color: #008000;
}

/* Marvel */

#PeterParker {
  position: sticky;
}

#NatashaRomanoff {
  color: #000;
  widows: 1;
}

#ReedRichards {
  flex: 1;
}

#SueStorm, 
#SueRichards {
  visibility: hidden;
  opacity: 1;
  will-change: opacity;
}

#BlackBolt {
  speak: never;
}

#PietroMaximoff {
  animation-duration: 0.000001s;
  color: #c0c0c0;
}