.container-top-a,
.grid-child.container-top-a {
  display: grid !important;
  grid-template-columns: 1fr !important;
}

.container-top-a > * {
  grid-column: 1 / -1 !important;
  width: 100% !important;
  max-width: 100% !important;
}

.container-top-a img {
  width: 100% !important;
  max-width: 800px;
  height: auto;
}