.site-container {
  padding: 2rem;
  display: grid;
  grid-template-columns: 1fr min(550px, 100%) 1fr;
  grid-gap: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-gap: 1em;
}

.column {
  grid-column: span var(--span);
}

article {
  width: 100%;
  margin-bottom: 4em;
}