*, *:before, *:after {
	box-sizing: border-box; 
}

html {
	font-size: 62.5%;
}

body {
	color: #444;
	background-color: hsl(0, 0%, 96%);
	positon: relative;
}

h1 {
	font-size: 1.8rem;
}

.box {
	position: absolute;
	top: 50%;
	left: 50%;
	transform: translateY(-50%) translateX(-50%);
	-webkit- transform: translateY(-50%) translateX(-50%);
	
	font-size: 16px;
}