Flexbox Zombies Challenge 6.11

I am stuck on this challenge, and out of hints. What am I overlooking?

crossbow {
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  align-items: center;
  
}

.target:nth-of-type(2) {
  align-self: stretch;
  flex-shrink: 0;
  
}

.target:nth-of-type(3) {
  align-self: center;
  flex-shrink: 1;
}

Here is the game link:
[https://mastery.games/flexboxzombies/chapter/6/level/11]

Solved

crossbow {
display: flex;
flex-direction: column;
align-items: center;
}

.target:nth-of-type(2) {
align-self: stretch;
flex-shrink: 1;

}

.target:nth-of-type(3) {
flex-grow: 1;
flex-shrink: 0;

}