body {
    background-image: url(DUCKS.jpg);
	text-align: center;
    color: #ffffff;
}

#fade_out {
	position: relative;
	margin-left: -500px;
    }

#fade_out img {
	position: absolute;
	transition: opacity 1s linear;
    margin: 0 auto;
    }
	
img.top:hover {
  opacity: 0;
  }