main>section#books {
    display: flex;
    flex-flow: row wrap;
}

main>section#books>* {
    margin-bottom: 20px;
}

main>section#books>form.upload {
    width: calc(100% / 3 - 20px - 8px);
    height: 212px;
    margin-right: 20px;
}

main>section#books>form.upload>p {
    font-size: 3rem;
    height: 0.3rem;
    line-height: 0;
}

main>section#books>article.book {
    width: calc(100% / 3 - 20px);
    height: 220px;
    position: relative;
    margin-right: 20px;
    display: flex;
    flex-direction: column;
}

main>section#books>article.book:nth-child(3n) {
    margin-right: unset;
}

main>section#books>:is(form.upload, article.book):nth-last-child(1),
main>section#books>:is(form.upload, article.book):nth-last-child(2),
main>section#books>:is(form.upload, article.book):nth-last-child(3) {
    margin-bottom: 0;
}

main>section#books>article.book>img {
    height: 100%;
    object-fit: cover;
    object-position: right;
    overflow: hidden;
    /* clip-path: polygon(5px calc(100% - 5px), calc(100% - 5px) calc(100% - 5px), calc(100% - 5px) 5px, 5px 5px); */
}

main>section#books>article.book>h4 {
    width: calc(100% - 20px);
    position: absolute;
    bottom: 0;
    margin: 0;
    padding: 10px;
    text-align: left;
    overflow-wrap: break-word;
    -webkit-hyphens: auto;
    -moz-hyphens: auto;
    -ms-hyphens: auto;
    hyphens: auto;
    color: #fff;
    background: rgba(0, 0, 0, 50%);
}

main>section#books>article.book>p {
    margin: unset;
}

main>section#book>img,
main>section#book>img::before {
    margin-bottom: 20px;
    width: 100%;
}

main>section#book>img::before{
    margin-top: -1em;
    height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
}

main>section#book>nav>ul {
    margin: 0;
    padding: 0;
    display: flex;
    list-style: none;
}

main>section#book>nav>ul>li[type="button"] {
    padding: 6px 20px;
}

main>section#book>nav>ul>li:only-of-type {
    margin-left: auto;
    margin-right: auto;
}

main>section#book>nav>ul>li.previous {
    margin-left: auto;
    margin-right: 15px;
}

main>section#book>nav>ul>li.next {
    margin-right: auto;
}
