@media (max-width:991px) {
    body.poster {
        margin-top: 60vh;
    }
}

body.poster {
    background-attachment: fixed;
}

.top-5 {
    top: 5px;
}
.custom_form_container{
    display: flex;
    flex-direction: column;
    align-content: center;
    justify-content: center;
    flex-wrap: wrap;
}
.form-border{
    max-width:500px;
    border: 1px solid black;
    padding: 30px;
    border-radius: 50px;
    box-shadow: 10px 10px 20px black;
}