body {
  height: 100vh;
  margin: 0;

  background: linear-gradient(to right, #b41414, #421616);
  
}

img {
  width: 300px;
  height: auto;
  display: block;
  margin: 20px auto;


  -webkit-mask-image: radial-gradient(
    circle,
    rgba(0, 0, 0, 1) 60%,
    rgba(0, 0, 0, 0) 100%
  );

  mask-image: radial-gradient(
    circle,
    rgba(0, 0, 0, 1) 60%,
    rgba(0, 0, 0, 0) 100%
  );

  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
}