.general-btn {
    background: transparent;
    border: 1px solid black;
    color: black;
    transition: 0.5s ease-in-out;
    font-weight: bold;
    box-shadow: 1px 1px 3px black,
    0px 0px 5px black;
}

.general-btn:hover {
    background: black;
    border: 1px solid black;
    color: white;
    box-shadow: 1px 1px 3px black,
                0px 0px 5px black,
                0px 0px 10px black;
}