#dialog {
    width: 25em;

    /* position 30% down page, centered horizontally */
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -30%);
}

#form .title {
    color: #444;
    font-size: 1.2em;
    font-weight: bold;
    margin: 10px 0 30px 0;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

#form .msg {
    padding-bottom: 20px;
}

#form {

    /* give the login dialog a box shadow */
    border-radius: 2px 2px 5px 5px;
    box-shadow: 0px 1px 5px rgba(0, 0, 0, 0.3);

    /* stack the form items vertically */
    display: flex;
    flex-direction: column;

    padding: 3em;
}

#form input {
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
}

#form a {
    font-size: 0.8em;
    color: #2196F3;
    text-decoration: none;
}

#form button {
    margin-top: 2em;

    box-shadow: none;
    border-width: 0;

    /* button text is bold white */
    font-size: 1em;
    font-weight: bold;
    color: white;
    padding: 10px;

    /* button is blue with curved corners */
    background-color: #2196F3;
    border-radius: 5px;
}

#form .instructions {
    padding-bottom: 1em;
}