* { box-sizing: border-box; }

body, html {
  margin: 0;
  padding: 0;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: hsl(270, 10%, 8%); 
}

.gif-container {
  display: flex;
  align-items: center;
  justify-content: center;
}

.gif-container img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.mobile-gif { display: none; }

@media (max-width: 768px) {

  .desktop-gif { display: none; }

  .mobile-gif { display: block; }
}