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

body {
  background: #222233;
  color: #fff;
  min-height: 480px;
  margin: 0;
  padding: 0;
}

header {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 50%;
}

h1 {
  font-size: 52px;
  margin: 0;
  padding: 0;
  border-bottom: 3px solid #99A;
}

header p {
  color: #99A;
  font-size: 11px;
  line-height: 12px;
  padding-bottom: 5px;
  padding-left: 10px;
}

article {
  font-family: Arial, sans-serif;
  text-align: center;
  max-width: 300px;
  margin: 0 auto;
  color: #CCC;
}

a {
  color: #fff;
}