.book-link,
.market-link,
.book-page .book-page-text a {
    background: linear-gradient(180deg, transparent 2px, 2px, #e9e9e9 99%, transparent 100%);
    color: inherit;
    font-weight: inherit;
    padding: 2px 4px;
    border-radius: 2px;
    text-decoration: none;
}
.section2 .wrap .quote .book-link{
    background: #ddd;
}
.txt .interviewee a {background: transparent;color: #fff;}

/* Widgets */
.graph-container .book-link,
.widget-chart .book-link,
.person-desc-block .book-link,
/* Project */
#header .book-link,
.photo_txt .book-link,
.expression_inner .book-link,
.img-desc .book-link {
    display: inline;
    background: none;
    padding: 0;
    border-radius: initial;
    text-decoration: underline;
}

.img-desc .book-link {
    text-decoration: inherit;
}

/* Zoom */
.article_text .book-link {
    padding: 0;
    background: none;
    color: inherit;
    text-decoration: none;
    border-bottom: 1px dashed;
}

.article_text .book-link:hover {
    text-decoration: none;
    border-bottom-color: transparent;
}