body {
  padding: 50px;
  font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}

a {
  color: #00b7ff;
}

.text-center {
  text-align: center;
}

.fz-50 {
  font-size: 50px;
}

.fz-30 {
  font-size: 30px;
}

.mt-5 {
  margin-top: 5rem;
}