#gallery_strip {
    margin-top:0.5rem;
    display:flex;
    flex-wrap: wrap;
    margin-left:-2px;
    max-width: min(275px, 100%);
}

#gallery_strip img {
    height: 50px;
    width: auto;
}

.book_img {display: inline-block;
    max-width: min(275px, 100%);
    height: auto;
    text-align: center;
}

.book_img img {
    width: 100%;
    height: auto;
/*    margin-top: 25px; */
}

h2.author {
    font-size: 1.2rem;
}

.book_title {
    font-weight: bold;
    color: #333333;
    font-size: 120%;
}

.purchase {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.price {
    font-size: 110%;
    font-weight: bold;
}

.add_cart {
    margin: 0;
}

.hi {
    background-color: yellow;
}

.text {
    line-height: 20px;
}

.related {
    position: relative;
    height: auto;
    overflow: hidden;
    margin: 0 0 0 15px;
    border-left: 1px solid darkred;
    text-align: center;
}

.related h4 {
    background-color: darkred;
    color: #fff;
    padding: 3px 3px 3px 10px;
    border-radius: 5px;
    text-align: center;
}

.related .content {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
}

#related-topics {
    position: relative;
    padding-bottom: 15px;
    text-align: left;
}


#related-topics a {
    display: inline-block;
}

.sep {
    color: #8b0000;
}

#related-topics a:link { color: #000; text-decoration: none; }
#related-topics a:hover { color: #000; text-decoration: underline; }
#related-topics a:active { color: #000; text-decoration: none; }
#related-topics a:visited { color: #000; text-decoration: none; }