#grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    grid-auto-rows: minmax(250px, auto);
    grid-auto-flow: dense;
    grid-column-gap: .5em;
    grid-row-gap: .5em;
    margin: 20px 0 0 0;
}

#grid img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.span-2 {
    grid-column-end: span 1;
    grid-row-end: span 2;
}

.box img {
  width: 100%;
  /* height: 33vw; */
}