#error_message {
    font-size: 24pt;
    color: red;
    display: none;
    margin:auto;
    width:90%;
    padding: 20px;
}

button {
    font-size: 16pt;
    margin: 10px 20px;
    padding: 5px 10px;
    margin:5px auto;
    width: 400px;
    display: "block";
}

label {
    font-size:16pt;
    display: inline-block;
    padding: 10pt;
}