h1 {
  font-size: 1.5em;
  text-align: center;
}
label {
  display: block;
  font-size: 1.3em;
  font-weight: bold;
}
label:after { content: ": "; }
body {
  background: #eeeeee;
  text-align: center;
}
input {
  background-color: white;
  font-size: 1.1em;
  margin: 0.5em;
  margin-bottom: 2em;
  max-width: 70%;
  padding: 1em;
}