.postCardGridWrapper {
  display: flex;
  flex-direction: column;
}

.postCardGrid {
  display: inline-grid;
  grid-template-columns: repeat(3, 1fr);
  grid-gap: 10px;
  grid-auto-rows: minmax(100px, auto);
}

.postCard {
  width: 150px;
  height: 150px;
  background-color: lightblue;
  display: flex;
  justify-content: center;
  align-items: center;
  border: black solid 1px;
}

.post {
  width: 100%;
  height: 100%;
  background-color: darkcyan;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
}