a, address, b, big, blockquote, body, center, cite, code, dd, del, div, dl, dt, em, fieldset, font, form, h1, h2, h3, h4, h5, h6, html, i, iframe, img, ins, label, legend, li, ol, p, pre, small, span, strong, u, ul, var
{
    margin: 0;  padding: 0;
}

a {  text-decoration: none;  }

li {  list-style: none;  }

body
{
    background-color: #e7eaeb;
}

.container
{
    background-color: #e7eaeb;
}

.header
{
    width: 100%;
    height: 70px;
    line-height: 70px;
    background-color: white;
    border-bottom: 1px solid #e5e5e5;
}

.header_inner
{
    width: 1200px;
    margin: auto;
}

.header_inner h2
{
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    font-size: 24px;
    color: #999999;
}

.body_container
{
    width: 1200px;
    margin: 50px auto 0 auto;
    background-color: white;
    border-top: 1px solid #e6e6e6;
    border-left: 1px solid #e6e6e6;
    border-right: 1px solid #e6e6e6;
}

.container_hd
{
    height: 50px;
    line-height: 50px;
    background-color: #f4f5f9;
}

.clearfix
{
    zoom: 1;
}

.clearfix:after
{
    content: "";
    height: 0;
    line-height: 0;
    display: block;
    visibility: hidden;
    clear: both;
}

.container_hd h2
{
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    font-size: 16px;
    padding: 0 15px;
    color: #666666;
}

.container_bd
{
    width: 100%;
    position: relative;
    height: auto;
}

/*左侧垂直导航*/
.col_side
{
    float: left;
    width: 205px;
    border-right: 1px solid #e6e6e6;
    margin-left: 1px;
    padding-bottom: 45px;
}

/*一级菜单 章标题隐藏*/
.menu_chapter_item
{
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    font-size: 15px;
    color: #666;
    padding: 0 0 0 0;
    border-bottom: 1px solid #e6e6e6;
}

.menu_chapter_title_div
{
    width: 100%;
    height: 45px;
    position: relative;
}

.menu_chapter_title
{
    position: absolute;
    left: 10px;
    right: 20px;
    height: 45px;
    line-height: 45px;
    white-space:nowrap;
    text-overflow:ellipsis;
    -o-text-overflow:ellipsis;
    overflow:hidden;
}

.menu_chapter_item:hover
{
    cursor: pointer;
}

.chapter_more
{

    width: 15px;
    height: 15px;
    position: absolute;
    right: 8px;
    top: 15px;
    vertical-align: middle;
}

/*章节*/
.menu_period_list
{
    display: none;
}

.menu_period_item
{
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    font-size: 15px;
    color: #888;
    height: 45px;
    line-height: 45px;
    margin: 2px 0;
}

.menu_period_title
{
    display: inline-block;
    margin-left: 10px;
    height: 45px;
    line-height: 45px;
    white-space:nowrap;
    text-overflow:ellipsis;
    -o-text-overflow:ellipsis;
    overflow:hidden;
    width: 190px;
}

.menu_period_item:hover
{
    cursor: pointer;
}

/*选中的导航列*/
.selected_period_item
{
    background-color: #4CAF50;
    color: white;
}

/*右侧内容*/
.col_main
{
    float: left;
    width: 985px;
    padding: 30px 0;
}

.chapter_content
{
    margin: 0 30px 30px 30px;
}

.chapter_body_content
{
    width: 100%;
    padding: 20px 0;
}

#load_content_iframe
{
    width: 100%;
    height: auto;
    border: none;
    color: #888888;
}

/*每一节标题*/
.chapter_period_title
{
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    font-size: 20px;
    color: #000;
    padding-bottom: 10px;
    border-bottom: 1px solid #e6e6e6;
}

.period_item
{
    margin-bottom: 15px;
}

.period_main_content_circle
{
    margin-right: 10px;
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    color: #444444;
    font-size: 20px;
}

.period_main_content_title
{
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    color: #666;
    font-size: 15px;
}

.period_main_conent_brief
{
    font-family: "Helvetica Neue", "Hiragino Sans GB", "Microsoft YaHei", "\9ED1\4F53", Arial, sans-serif;
    font-weight: normal;
    color: #888;
    font-size: 15px;
    margin-left: 20px;
}