body {
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #e9eff6;
  color: #222;
  margin: 0;
}
header {
  background: #0a2846;
  color: #fff;
  padding: 2em 1em;
  text-align: center;
}
main {
  padding: 2em 1em;
  text-align: center;
}
footer {
  background: #0a2846;
  color: #fff;
  padding: 1em;
  text-align: center;
}
a {
  display: inline-block;
  margin-top: 1.5em;
  background: #57c6ff;
  color: #05385b;
  text-decoration: none;
  padding: 0.8em 2em;
  border-radius: 2em;
  font-weight: bold;
}