body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: Arial, sans-serif;
    background-color: #000040;
}

.login-container {
    background-color: #000040;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    width: 300px;
    /* make login dialog appear at the top of the page to make better visible on RPi or phone.  */
    position: fixed;
    top: 0;
}

h2 {
    margin-bottom: 20px;
    text-align: center;
    color: white;
}

.input-container {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: white;
}

input {
    width: 100%;
    padding: 8px;
    box-sizing: border-box;
    background: cyan;
    border: none;
}

.button-container {
    display: flex;
    justify-content: flex-end;
}

.btn-text {
    font-size: 2vh;
    background: light-gray;
    border: blue;
    margin-top: 30px;
    width: 30%;
    padding: 16px 1px;  /* make button high enough to be clicked on RPi with fingers. */
    height: auto;
}

.message {
  color: red;
}