body {
    margin: 0;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-paper);
}

main {
    padding: 80px 0px;
}

#texto-principal {
    padding: 0px 50px 50px 50px;
}

#btn-livros-home {
    display: flex;
    justify-content: center;

    background-color: var(--bg-marca);
    padding: 10px;

    color: var(--bg-white);

    margin: 50px 20% 0px 20%;
    border-radius: 10px;
}
#btn-livros-home:hover {
    background-color: var(--bg-marca-ativo);
}