html body {
    background-color: #002447;
}
#main-body{
    border: 1px solid white;
    border-radius: 5px;
    height: 600px;
    padding: 30px 30px 30px 30px;
    color: white;
    font-size: 20px;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
}
#main-body hr{
    color: white;
}

#type{
    border: 1px solid white;
    color: white;

}
.messages .col{
    font-size: 20px;
    font-family: 'Courier New', Courier, monospace;
}
.messages span.riddle{
    color: #00C074;
    animation : on 0.5s infinite alternate;
}
@keyframes on{
    from{
        opacity: 0;
    }
}
.form .success{
    display: none;
    background-color: #83FFCD;
    color:#005D37;
    border: solid 1px #005D37;
    border-radius:25px;
    padding: 8px 10px;

}
.form .error{
    color: #721c24;
    padding: 8px 10px;
    text-align: center;
    border-radius: 5px;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    display: none;
  }