image.css

.ublock-img{
  user-select: none;
  -webkit-user-select: none;
  max-width: 100%;
  max-height: 100%;
  min-width: 100%;
  min-height: 100%;
  object-fit: contain;
  position: absolute;
  margin: 0px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

*{
  cursor: none !important;
}