sidebar *,
nav * {
    font-family: "Helvetica Neue", "Helvetica", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "WenQuanYi Micro Hei", "Arial", sans-serif;
    margin: 0;
    padding: 0;
    outline: none;
    color: #333;
    word-break: break-all;
    text-decoration: none;
}

.pull-left {
    float: left;
}

nav {
    position: fixed;
    top: 0;
    left: 0;
    height: 50px;
    display: block;
    width: 100%;
    background-color: #fff;
    border-bottom: 1px solid #e5e5e5;
    z-index: 1;
    line-height: 50px;
}

nav img {
    vertical-align: middle;
    margin: 0 5px 0 10px;
}

sidebar {
    position: fixed;
    top: 51px;
    left: 0;
    width: 250px;
    background-color: #fff;
    border-right: 1px solid #e5e5e5;
    font-size: 14px;
    height: -webkit-calc(100% - 50px);
    height: -ms-calc(100% - 50px);
    height: -moz-calc(100% - 50px);
    height: calc(100% - 50px);
    overflow: auto;
}

sidebar li {
    list-style-type: none;
    line-height: 40px;
}

sidebar li p {
    cursor: pointer;
    text-indent: 10px;
}

sidebar li p a {
    display: block;
    font-size: 14px;
}


sidebar li .ico_up .ico {
    background-position: 0 -4px;
}

.hidden ul {
    display: none;
}

.ico {
    background-image: url(./assets/jiantou.png);
    width: 8px;
    height: 4px;
    margin-top: 18px;
    margin-left: 10px;
}

.unchild-span {
    width: 8px;
    height: 4px;
    margin-top: 18px;
    margin-left: 10px;
}

.common-level-1 p a {
    padding-left: 1em;
}

.common-level-2 p a {
    padding-left: 2em;
}

.level0 {
    background-color: #f3f3f3;
}

.level1 {
    background-color: #eaeaea;
}

.level0 .common-level-1 {
    background-color: #e9e9e9;
}

.level1 .common-level-2 {
    background-color: #ddd;
}

.elem-active a {
    background-color: #2196F3;
    color: #fff;
}

sidebar li .ico_down .ico {
    background-position: 0 0;
}

article {
    position: absolute;
    top: 60px;
    left: 290px;
}

article .markdown-body img {
    border: 1px solid #ededed;
}


::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}



/* Track */

::-webkit-scrollbar-track {
    //-webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.3);
    //-webkit-border-radius: 10px;
    //border-radius: 10px;
    background: #fff;
}



/* Handle */

::-webkit-scrollbar-thumb {
    -webkit-border-radius: 10px;
    border-radius: 10px;
    background: #ccc; //-webkit-box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.5);
}

::-webkit-scrollbar-thumb:window-inactive {
    background: #ddd;
}