html,body {
    height: 100%;
}

div.custom_wrapper {
	height: 100vh;
	width: 100%;
	display:flex;
	flex-direction:column;
}

div.custom_block {
	height: auto;
	width: 100%;
}

div.custom_block_map {
	height: auto;
	width: 100%;
	flex:1;
}