pre.prettyprint.linenums {
    box-shadow: 40px 0 0 #FBFBFC inset, 41px 0 0 #ECECF0 inset;
}
pre.prettyprint {
    background-color: #F7F7F9;
    padding: 10px;
    border: 1px solid #E1E1E8;
    tab-size: 4;
}
blockquote, table, pre, code {
    margin: 8px 0;
}
pre, code {
    font-family: Consolas, "Liberation Mono", Menlo, Courier, monospace;
    word-wrap: break-word;
}
pre {
    font-size: 13px;
}
user agent stylesheet
pre, xmp, plaintext, listing {
    display: block;
    font-family: monospace;
    white-space: pre;
    margin: 1em 0px 1em;
}
Inherited from body
body {
    font-family: Helvetica, "Hiragino Sans GB", "微软雅黑", "Microsoft YaHei UI", SimSun, SimHei, arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 20px 15px;
    padding: 1.33rem