:root {
    --base-color: #000;
    --border-color: #e6e6e6;
}

:lang(zh-CN) {
    font-family: SF Pro SC, SF Pro Text, SF Pro Icons, PingFang SC, Helvetica Neue, Helvetica, Arial, sans-serif
}

ul.quote {
    list-style: none;
}

.pageheader {
    display: flex;
    flex-direction: row;
    align-items: center;
    margin-bottom: 1em;
    margin-bottom: 1em;
    border-bottom: 1px solid var(--border-color);
}

h1.title {
    line-height: 1.0;
}
a.nav {
    font-size: 14px;
}

.coverheader {
    display: flex;
    flex-direction: row;
    align-items: center;
    margin-bottom: 1em;
    margin-bottom: 1em;
    border-bottom: 1px solid var(--border-color);
}

div.content {
    display: flex;
    flex-direction: column;
}

div.contentblock {
    display: flex;
    flex-direction: column;
    margin-bottom: 1em;
    margin-bottom: 1em;
    border-bottom: 1px solid var(--border-color);
}

ul.nav {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: #333;
}

ul.nav li {
    float: left;
}

ul.nav li a,
ul.nav .dropbtn {
    display: inline-block;
    color: white;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

ul.nav li a:hover:not(.active),
ul.nav .dropdown:hover .dropbtn {
    background-color: #111;
}

ul.nav .active {
    background-color: #4CAF50;
}

ul.nav .dropdown-content {
    display: none;
    position: absolute;
    z-index: 1;
}

ul.nav .dropdown-content a {
    /* color: black; */
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

/* ul.nav .dropdown-content a:hover {
    background-color: #f1f1f1;
} */

ul.nav .dropdown:hover .dropdown-content {
    display: block;
    background-color: #333;
}