.grid-item {
  > div {
    height: 100%;
    display: flex;
    flex-direction: column;

    > :nth-child(1) {
      flex: 0;
    }

    > :nth-child(3) {
      flex: 1;

      > div {
        height: 100%;
        display: flex;
        flex-direction: column;

        > :first-child {
          flex: 1;
        }
      }
    }
  }
}