.sponsor {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  max-width: 30%;
  margin: 0 auto;
}

.sponsor p {
    margin-bottom: 0;
}

.sponsor-text-1  { grid-column: 1; grid-row: 1; }
.sponsor-text-2  { grid-column: 2; grid-row: 1; }
.sponsor-image-1 { grid-column: 1; grid-row: 2; }
.sponsor-image-2 { grid-column: 2; grid-row: 2; }

@media (max-width: 768px) {
  .sponsor {
    grid-template-columns: 1fr;
  }

  .sponsor > * {
    grid-column: auto;
    grid-row: auto;
  }
}