CSS

View Port Size

	1vw = 1% of viewport width
	1vh = 1% of viewport height
	1vmin = 1vw or 1vh, whichever is smaller
	1vmax = 1vw or 1vh, whichever is larger

e.g.

	h1{
		font-size : 5.9vw
	}

	#div1{

		/* Screensize - 100px */
		width : calc(100vw - 100);
	}