.book-section {
    height: 140vh;
    max-width: 100%;
    /* padding: 40px 0; */
    text-align: center;
    margin-bottom: -170px;
}

.book-section>.container-product {
    height: 100%;
    width: 100%;
    position: relative;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2%;
    margin-bottom: 30px;
    perspective: 1200px;
}

.container-product>.right {
    position: absolute;
    height: 100%;
    width: 50%;
    transition: 0.7s ease-in-out;
    transform-style: preserve-3d;
}

.book-section>.container-product>.right {
    right: 0;
    transform-origin: left;
    border-radius: 10px 0 0 10px;
}

.right>figure.front,
.right>figure.back {
    margin: 0;
    height: 100%;
    width: 100%;
    position: absolute;
    left: 0;
    top: 0;
    background-repeat: no-repeat;
    backface-visibility: hidden;
    background-color: white;
    overflow: hidden;
}

.right>figure.front {
    background-position: right;
    border-radius: 0 10px 10px 0;
    box-shadow: 2px 2px 15px -2px rgba(0, 0, 0, 0.2);
}

.right>figure.back {
    background-position: left;
    border-radius: 10px 0 0 10px;
    box-shadow: -2px 2px 15px -2px rgba(0, 0, 0, 0.2);
    transform: rotateY(180deg);
}

.flip {
    transform: rotateY(-180deg);
}

.flip::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    z-index: 10;
    width: 100%;
    height: 100%;
    border-radius: 0 10px 10px 0;
    background-color: rgba(0, 0, 0, 0.1);
}

.about-section {
    background: none !important;
}

.action-button button {
    border: 2px solid #121212;
    background-color: #121212;
    color: #fff;
    padding: 3px 15px;
    border-radius: 5px;
    cursor: pointer;
    /* margin: 10px; */
    transition: 0.3s ease-in-out;
}

.action-button>button:focus,
.action-button>button:active {
    outline: none;
}

.book-section>p {
    color: rgba(0, 0, 0, 0.7);
    font-family: calibri;
    font-size: 24px;
}

.book-section>p>a {
    text-decoration: none;
    color: #ef9f00;
}

.action-button>button:hover {
    background-color: #000;
    color: #fff;
}

.front#cover,
.back#back-cover {
    background-color: #121212;
    text-align: left;
}

@media all and (max-width: 425px) {
    .section-content-full {
        padding: 40px 0;
    }

    .book-section {
        height: 320px;
        width: 100%;
        /* padding: 40px 0; */
        text-align: center;
        margin-bottom: 30px;
    }
}

@media all and (max-width: 375px) {
    .book-section {
        height: 400px;
        width: 100%;
        padding: 40px 0;
        text-align: center;
    }
}

@media all and (max-width: 320px) {
    .book-section {
        height: 300px;
        width: 100%;
        padding: 40px 0;
        text-align: center;
    }
}