Grid

place-self: <align-self> <justify-self>

CSS
.container {
  display: grid;
  grid-template: repeat(3, 200px) / repeat(3, 200px);
}

.box-1 {
  place-self: center end;
}
Box-1
Box-2
Box-3
Box-4
Box-5
Box-6
Box-7
Box-8
Box-9
CSS
.container {
  display: grid;
  grid-template: repeat(3, 200px) / repeat(3, 200px);
}

.box-1 {
  place-self: center;
}
Box-1
Box-2
Box-3
Box-4
Box-5
Box-6
Box-7
Box-8
Box-9