.table-b{
            border: solid 1px #000;
            padding: 10px 10px;
            background-color: #dadada;
            color: #000;
    }
    .btn.focus, .btn:focus {
    box-shadow: 0 0 0 .2rem rgb(0 123 255 / 0%)!important;
    }
    .btn-link:hover {
    color: #0056b3;
    text-decoration: none;
    }