{{ if or .Params.toc (and .Site.Params.toc (ne .Params.toc false)) -}}
<style type="text/css">
    .post-toc {
        position: fixed;
        width: 200px;
        margin-left: -210px;
        padding: 5px 10px;
        font-family: Athelas, STHeiti, Microsoft Yahei, serif;
        font-size: 12px;
        border: 1px solid rgba(0, 0, 0, .07);
        border-radius: 5px;
        background-color: rgba(255, 255, 255, 0.98);
        background-clip: padding-box;
        -webkit-box-shadow: 1px 1px 2px rgba(0, 0, 0, .125);
        box-shadow: 1px 1px 2px rgba(0, 0, 0, .125);
        word-wrap: break-word;
        white-space: nowrap;
        -webkit-box-sizing: border-box;
        box-sizing: border-box;
        z-index: 999;
        cursor: pointer;
        max-height: 70%;
        overflow-y: auto;
        overflow-x: hidden;
    }

    .post-toc .post-toc-title {
        width: 100%;
        margin: 0 auto;
        font-size: 20px;
        font-weight: 400;
        text-transform: uppercase;
        text-align: center;
    }

    .post-toc .post-toc-content {
        font-size: 15px;
    }

    .post-toc .post-toc-content>nav>ul {
        margin: 10px 0;
    }

    .post-toc .post-toc-content ul {
        padding-left: 20px;
        list-style: square;
        margin: 0.5em;
        line-height: 1.8em;
    }

    .post-toc .post-toc-content ul ul {
        padding-left: 15px;
        display: none;
    }

    @media print,
    screen and (max-width:1057px) {
        .post-toc {
            display: none;
        }
    }
</style>
<div class="post-toc" style="position: absolute; top: 188px;">
    <h2 class="post-toc-title">{{ i18n "toc" }}</h2>
    <div class="post-toc-content">
        {{.TableOfContents}}
    </div>
</div>
<script type="text/javascript">
    $(document).ready(function () {
        var postToc = $(".post-toc");
        if (postToc.length) {
            var leftPos = $("#main").offset().left;
            if (leftPos < 220) {
                postToc.css({ "width": leftPos - 10, "margin-left": (0 - leftPos) })
            }

            var t = postToc.offset().top - 20,
                a = {
                    start: {
                        position: "absolute",
                        top: t
                    },
                    process: {
                        position: "fixed",
                        top: 20
                    },
                };
            $(window).scroll(function () {
                var e = $(window).scrollTop();
                e < t ? postToc.css(a.start) : postToc.css(a.process)
            })
        }

        if ($("#TableOfContents").children().length < 1) {
            $(".post-toc").remove();
        }
    })
</script>
{{- end }}