.banner-sucesso {
    background: url(../img/banners/sucesso.jpg) center top no-repeat;
    text-align: center;
}

.banner-404 {
    background: url(../img/banners/404.jpg) center top no-repeat;
    text-align: center;
}

.banner-500 {
    background: url(../img/banners/500.jpg) center top no-repeat;
    text-align: center;
}

.feedback {
    text-align: center;
}