#gallery_img {
	/*display: block;
	text-align: center;
	width: 500px;*/
	/*opacity: 1.0;
	-moz-transition: opacity 1s;
	-webkit-transition: opacity 1s;
	-o-transition: opacity 1s;
	transition: opacity 1s;*/
}

#parent_img {
	opacity: 0.0;
	-moz-transition: all 0.5s ease-in-out;
	-webkit-transition: all 0.5s ease-in-out;
	-o-transition: all 0.5s ease-in-out;
	transition: all 0.5s ease-in-out;
}

/*.demo img {
  -moz-transition: all 1s ease-in-out;
  -webkit-transition: all 1s ease-in-out;
  -o-transition: all 1s ease-in-out;
  transition: all 1s ease-in-out;
}*/