body {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

form, #msg {
  width: 100%;
  padding: 30px;
  background-color: black;
  border-radius: 20px;
  box-shadow: 0 0 1px grey;
  margin: 20px;

  span {
    font-size: 1.3rem;
    font-weight: bold;
    text-decoration: underline;
  }
}

button {
  margin-top: 20px;
}