.image-container {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #000; /* or #fff for white bars */
}

.canvas-element {
  /* This ensures the image maintains its aspect ratio */
  object-fit: contain;
  max-width: 100%;
  max-height: 100%;
}