#slides{
	position: relative;
	height: 450px;
	padding: 0px;
	margin: 0px;
	list-style-type: none;
}
.slide{
    position: absolute;
    left: 0px;
    top: 0px;
    width: 100%;
    height: 100%;
    opacity: 0;
    z-index: 1;
    -webkit-transition: opacity 1.5s;
    -moz-transition: opacity 1.5s;
    -o-transition: opacity 1.5s;
    transition: opacity 1.5s;
}
.showing{
    opacity: 1;
    z-index: 2;
}