@media screen and (min-width:768px) {
    .btn-links {
        display: flex;
    }
}

.book-btn {
    padding: 6px 12px;
    border: none;
}

.btn_book {
    background-color: #a3063b;
    width: 300px;
}

@media screen and (max-width:400px) {
    .btn_book {
        
        width: 250px;
    } 
}