div#banner_main_container
{
	width: 100%;
	height: auto;
	padding-top: 33%;
	position: relative;
	z-index: 4000;
}

div#banner_main_container div.banner_main_item
{
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
}

div#banner_main_container div.banner_main_item:nth-child(1)
{
	z-index: 2000;
}

div#banner_main_container div.banner_main_item:nth-child(2)
{
	z-index: 1000;
}

div#banner_main_container a
{
	display: none;
	width: 100%;
	height: auto;
	background-position: center;
	background-size: cover;
}

div#banner_main_container a.large
{
	display: block;
	padding-top: 33.3%;
}

div#banner_main_container a.medium
{
	padding-top: 50%;
}

div#banner_main_container a.small
{
	padding-top: 100%;
}

@media (max-width: 800px)
{
div#banner_main_container { padding-top: 50%; }
div#banner_main_container a.large { display: none; }
div#banner_main_container a.medium { display: block; }
}

@media (max-width: 480px)
{
div#banner_main_container { padding-top: 100%; }
div#banner_main_container a.medium { display: none; }
div#banner_main_container a.small { display: block; }
}