body {
    padding-top: 70px;
}
@media screen and (min-width:768px) and (max-width:991px) {
    body {
        padding-top: 120px;
    }
}
@media screen and (min-width:992px) and (max-width:1199px) {
    body {
        padding-top: 70px;
    }
    .bi {
        fill: currentColor;
    }

}