.my-banner {
  background-image: url("/images/background.png"); /* change to your real background */
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: scroll;
  min-height: 400px;
  padding: 2rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.footer .grid-child {
    display: flex !important;
    justify-content: center !important;
    width: 100% !important;
}