.tallContent {
  grid-area: 1 / 5 / 8 / 9;
  position: relative;
}


.particleCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

@media screen and (max-width: 450px) {
  .tallContent {
    grid-area: 7 / 1 / 12 / 5;
  }
}