.header-inner .book-logo img {
    height: 18px;
}

.code-wrapper pre {
    background: #F5F7FA;
}

h3,h4 {
    margin-top: 30px;
}

.page-inner .markdown-section, .page-inner .markdown-section p {
    line-height: 2;
}

.markdown-section hr {
    height: 2px !important;
}

.book-summary ul.summary li.active > a {
    filter: progid:DXImageTransform.Microsoft.gradient(GradientType=1,startColorstr=#1F94FE,endColorstr=#06C6FF);
    background:linear-gradient(270deg,#06C6FF 0%,#1F94FE 100%);
    color: #fff;
}

.markdown-section table td {
    word-wrap:break-word;
    word-break:break-all;
    line-height: 1.5;
    max-width: 300px;
}