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

a {
  color: #00B7FF;
}

.modal {
  position: fixed;
  top: 0; left: 0;
  width: 100vw; height: 100vh;
  background-color: rgba(0,0,0,0.4);
  display: flex;
  justify-content: center;
  align-items: center;
}

.modal-content {
  background: white;
  padding: 2rem;
  border-radius: 8px;
}