.fixed{
	position: fixed;
}
.dbg{
	bottom: 0;
	right: 0;
	width: 300px;
	background: #f7f7f7;
	border: 1px solid black;
}
.ctl_next{
	right: 0;
}
.ctl{
	position: fixed;
	font-size: 72px;
	background: #f7f7f7;
	bottom: 0;
}
.ctl_prev{
	left: 0;
}