.login_failed
{
    color: #f00;
    text-align: center;
}

fieldset
{
    margin: 0 auto;
    margin-top: 10px;
    width: 520px;
}

label
{
    display: inline-block;
    width: 100px;
}

input[type="text"]:not(:first-of-type), input[type="password"]:not(:first-of-type)
{
    margin-top: 10px;
}