#youplum {
	display: block;
	text-align: center;
	position: absolute;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	line-height: 1;
}
		
html,
body {
  height: 100%;
}

body {
  align-items: center;
}

form {
  width: 100%;
  max-width: 45em;
  padding: 1em;
  margin: auto;
}