body {
  font-family: "Nunito", sans-serif;
  margin: 0;
  background: #f6f8fb;
}
header {
  background: #1f3c88;
  padding: 12px 18px;
}
nav a {
  color: #fff;
  margin-right: 14px;
  text-decoration: none;
}
main {
  max-width: 960px;
  margin: 24px auto;
  background: #fff;
  border-radius: 10px;
  padding: 20px;
}
.msg {
  background: #e8f1ff;
  border: 1px solid #b7d4ff;
  padding: 8px;
  margin-bottom: 8px;
}