$(document).ready(function() {
$("#toc").toc({content: ".tt_article_useless_p_margin", headings: "h2,h3,h4"});
});
.book-toc {
position: relative;
width: fit-content;
border: 1px solid #b0d197;
padding: 10px 20px 10px 15px;
z-index: 1;
}
.book-toc:after {
content: "";
position: absolute;
width: 100%;
height: 100%;
top:...
