#container {
    margin: 0 auto;
    width: 90%;
    text-align: center;
    padding-top: 2em;
}
form div {
    margin-bottom: 1em;
}
form label {
    display: block;
    font-weight: bold;
}
form label[for='remember'] {
    display: inline-block;
    font-weight: normal;
}
form input[type="submit"] {
    font-weight: bold;
}
div.error {
    margin: 1em auto;
    padding: 0.5em;
    background-color: tomato;
    color: white;
    font-family: Verdana;
}