html,
body {
  height: 100%;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  padding-top: 1rem;
  padding-bottom: 1rem;

  background-color: #B0C4DE;
}

.container .form-download {
  background-color: #f5f5f5;
  box-shadow: 5px 5px 5px grey;
  border-radius: 3px;
}

.form-download {
  width: 100%;
  max-width: 20rem;
  margin: 0 auto;

  padding: 2rem;
}