body {
    padding-top: 40px;
    padding-bottom: 40px;
    background-color: #eee;
    display: flex;
    align-items: center;
}

.form-login {
    max-width: 330px;
    padding: 15px;
    margin: 0 auto;
}

.login-alert {
    max-width: 330px;
    margin: 0 auto;
    margin-bottom: 10px;
}

.login-heading {
    text-align: center;
    margin-bottom: 20px;
}