.tb .navbar img {
    width: 36px;
    height: 36px;
}
.tb footer, .tb footer .copyright {
    text-align: center;
}
@media (min-width: 992px) {
    .tb footer {
        text-align: left;
    }
    .tb footer .copyright {
        text-align: right;
    }
}
@media (min-width: 768px) {
    .tb .navbar-expand-md .navbar-nav .nav-link {
        padding-right: 1rem;
        padding-left: 1rem;
        padding-bottom: 1.3125rem;
        padding-top: 1rem;
        position: relative;
        z-index: 1;
        color: #fff;
    }
    .tb .navbar-expand-md .navbar-nav .nav-link:hover {
        background-color: #0080ff;
        color: #fff;
    }
    .tb .navbar {
        padding: 0;
    }
    .tb #line {
        width: 100%;
        height: .3125rem;
        background-color: #0080ff;
        position: absolute;
        bottom: 0;
    }

    .tb .navbar-brand {
        margin-bottom: .3125rem;
    }

    .tb #nav .form-control {
        margin-bottom: .3125rem;
    }


    .tb .navbar-dark .navbar-nav .active>.nav-link {
        background-color: #FFF;
        color: #000;
    }
}