index.html

<style>
	.container {
		width: 300px;
	}
	.window {
		width: 300px;
		float: left;
	}
	.prev {
		left: -300px;
	}
	.next {
		right: 300px;
	}

</style>
<div class="container">
	<div class="window prev">
		<img src="http://placehold.it/300x250" alt="">
	</div>
	<div class="window current">
		<img src="http://placehold.it/300x250" alt="">
	</div>
	<div class="window future">
		<img src="http://placehold.it/300x250" alt="">
	</div>
</div>