style.css

body {
  font-family: Segoe UI;
  background: #3973aa;
  color: #fefeff;
  height: 100vh;
  margin: 0;
}

#page {
  display: table;
  height: 100%;
  margin: 0 auto;
  margin-top: -10px;
  width: 70%;
  font-size: 1.9vw;
}

#container {
  display: table-cell;
  vertical-align: middle;
}

h1,
h2,
h3,
h4,
h5 {
  font-weight: normal;
  padding: 0;
  margin: 25px 0;
  margin-top: 0;
  font-weight: 300;
}

h1 {
  font-size: 6rem;
  margin-bottom: 10px;
}

h2 {
  font-size: 21px;
}

h4 {
  font-size: 18px;
  line-height: 1.5em;
}

h5 {
  line-height: 22px;
  font-size: 14px;
  font-weight: 400;
}

#details {
  display: flex;
  flex-flow: row;
  flex-wrap: nowrap;
  padding-top: 10px;
}

#qr {
  flex: 0 1 auto;
}

#image {
  background: white;
  padding: 5px;
  line-height: 0;
}

#image img {
  width: 9.8em;
  height: 9.8em;
}

#stopcode {
  padding-left: 10px;
  flex: 1 1 auto;
}

@media (min-width: 840px) {
  #page {
    font-size: 140%;
    width: 800px;
  }
}

a {
  color: #e1f0ff;
}