.btn-outline-default {
    background-color: white;
    color: black;
    border-color: black !important;
}

    .btn-outline-default:hover {
        background-color: black !important;
        color: #fff !important;
        border-color: black !important;
    }

.top-btn {
    width: 48px !important;
    height: 41.5px !important;
    justify-content: center;
}