html, body, .container {
		height: 100%;
	}
	
	.container-table {
		display: table;
	}
	
	.vertical-center-row {
		display: table-cell;
		vertical-align: middle;
	}
	
	.alert-danger  {
		border-top-left-radius: inherit; 
		border-top-right-radius: inherit;
	}