img {
    max-width: 100%;
    height: auto;
}


.cssgrid {
  display: grid;
  grid-template-rows: 1fr 1fr;
  grid-auto-rows: 1fr;
  grid-gap: 0.8em;
  border: 1px solid #ddd;
  padding: 0.8em;
  margin: 0 0 2em;
}

.cssgrid > div {
  background: #ddd;
  overflow: auto;
  min-width: 0;
  padding: 1em;
}