* {
    box-sizing: border-box;
}

.selector-for-some-widget {
    box-sizing: content-box;
}

@media (max-width: 768px) {
    .d-flex {
        flex-direction: column;
    }
    .mb-3 {
        margin-top: 1rem!important;
    }
}

@media (max-width: 420px) {
    .justify-content-end {
        justify-content: flex-start !important;
    }
}

.btn-dark:hover {
    background-color: #fff;
    color: #151112;
}