article
{
	min-height: calc(100vh - 73px - 123px);
}

	
	/* MOBILE / Portrait */
	@media screen and (max-width:767px)
	{
		article
		{
			min-height: calc(100vh - 73px - 258px);
		}
	}
	
	/* Chromebook (1080 x 675) */

	@media only screen and (orientation : landscape)
	and (width: 1080px)
	{
		/*
		article
		{
			min-height: calc(100vh - 73px - 150px);
		}
		*/
	}