.toc {
    position: fixed;
    z-index: 10;
    top: 0;
    left: -300px;
    width: 300px;
    height: 80%;
    margin: 0;
    margin-top:10%;
    padding: 0;
    background-clip: padding-box;
    background-color: #FFF;
    border: 1px solid rgba(0, 0, 0, 0.15);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.176);
    font-family: Arial, 'Courier New', "Helvetica Neue", Helvetica, sans-serif;
    overflow: visible;
}

.toc-title {
    height: 40px;
    margin: 0 auto;
    border-bottom: 1px solid #ddd;
    line-height: 40px;
    background-color: #f4f5f9;
    font-family: 'Courier New', "Helvetica Neue", Helvetica, Arial, sans-serif;
    text-align: center;
    overflow: hidden;
}

.toc-bar {
    position: absolute;
    z-index: 1;
    top: 50%;
    right: -49px;
    width: 50px;
    height: 80px;
    margin: -40px 0 0;
    background-color: #fff;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-left: none;
    cursor: pointer;
    text-align: center;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.176);
    overflow: hidden;
}

.toc-switch {
    margin: 0 auto;
    height: 40px;
    line-height: 40px;
    text-align: center;
    font-weight: bold;
    font-size: 22px;
    overflow: hidden;
}

.toc-top:link,
.toc-top:visited,
.toc-top:hover {
    display: block;
    margin: 0 auto;
    height: 40px;
    line-height: 40px;
    font-size: 14px;
    color: #333;
    text-decoration: none;
    text-align: center;
    overflow: hidden;
}

.toc-title:hover,
.toc-top:hover {
    background-color: #f4f5f9;
}

.toc-bd {
    position: relative;
    z-index: 2;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    background-color: #FFF;
    overflow: auto;
}

.toc-list {
    margin: 0 auto;
    padding: 10px 0;
    overflow: hidden;
}

.toc-sub-list {
    margin: 0;
    padding: 0 0 0 1em;
    overflow: hidden;
}

.toc-item {
    line-height: 30px;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
    overflow: hidden;
}

.toc-item a:link,
.toc-item a:visited,
.toc-item a:hover {
    color: #333;
    text-decoration: none;
}

.toc-item a:hover {
    color: #008cff;
}

.toc-list li.divider {
    background-color: #e5e5e5;
    height: 1px;
    margin: 9px 0;
    overflow: hidden;
}

.toc-chapter {
    padding-right: 5px;
}

.toc-overlay {
    position: fixed;
    z-index: 9;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #333;
    opacity: 0.2;
    filter: alpha(opacity=20);
    overflow: hidden;
}

.toc-hide {
    display: none;
}