html {
    font-family: sans-serif;
    font-size: 1rem;
}

body {
    background-image: url('../img/backgp4.jpeg');
}



    div {
/* removed -center from border-center, changed height to 550px */
      background-color: dodgerblue;
      border: 5px solid black;
      border-radius: 40px;
      height: 575px;
      width: 450px;
      padding-right: 40px;
    }

    form{
      margin:auto;
      text-align: right;
      width:100%;
      display:flex;
      justify-content: center;
    }

    /* Set a style for the submit button */
    .btn {
      background-color: darkblue ;
      color: white;
      border: none;
      border-radius: 10px;
      cursor: pointer;
      opacity: 0.9;
      padding: 10px;
      font-weight: bold;

    }

    .btn:hover {
      opacity: 1;
      background-color: yellow;
      color: darkblue;
    }
    .block{
      text-align: center;
      padding: 1rem;
    }