body {
    font-family: "Roboto", sans-serif;
    text-align: center;
  }
  
  .btn {
    font-size: 1.5rem;
    background-color: #0095f7;
    padding: 15px;
    text-decoration: none;
    color: #ffffff;
    -webkit-border-radius: 8px;
    -moz-border-radius: 8px;
    border-radius: 8px;
  }
  
  .center-screen {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    min-height: 100vh;
  }