@media (max-width:991px) {
    body.poster {
        margin-top: 40vh;
    }
}

body.poster {
    background-attachment: fixed;
}

.top-5 {
    top: 5px;
}

@media (max-width:991px) {
    .dark-background-on-small {
        background-color: rgba(0, 0, 0, 0.25);
    }
}