* {
  margin: 0;
  padding: 0;
}

html,
body {
  width: 100%;
  height: 100%;
}

body {
  padding: 10px;
  box-sizing: border-box;
  overflow: hidden;
}

div {
	text-align: center;
}

p.font_size_x {
	font-size: x-small;
}