* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  width: 100%;
  overflow: hidden; /* Ensures no scrollbars appear */
}

img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover; /* Change to 'contain' if you don't want cropping */
}