body {
  background-image: url("../images/background.gif");
  background-size: 500px 500px;   /* or: cover */
  background-position: center;
  background-repeat: repeat;      /* or: no-repeat */
  background-attachment: fixed;
}

img {
  max-width: 90%;
  height: auto;
}

footer {
  font-family: sans-serif;
  font-size: 100px;
  background: #1100f26f;
  text-align: center;
  color: #661b65;
  -webkit-text-stroke: 2px #ed3f5d;
  height: center;
  font-weight: 700;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  padding: 1rem;
}

.grid a {
  display: block;
  aspect-ratio: 1 / 1;  /* Makes perfect squares */
  border-radius: 10px;
  overflow: hidden;
}

.grid img {
  width: 100%;
  height: 100%;
  object-fit: cover;    /* Fills the square, crops edges if needed */
}