* {
    list-style: none;
    padding: 0;
    margin: 0;
    list-style-type: none;
}
.leftNav {
    display: block;
    width: 212px;
    float:left;
}
#menuabout_nav_title {
    width: 212px;
    height: 50px;
    background-color: #1a5599;
    display: block;
}
#menuabout_nav_title span {
    margin-left: 10px;
}
.t1 {
    color: #fff;
}
.t2 {
    color: #cacacc;
    font-size: 13px;
}

#nav {
    width: 212px;
    float:left;
}

    #nav li {
        width: 212px;
        height: 50px;
        margin: 5px 0;
        line-height: 50px;
        background: #ececec;
    }

        #nav li a {
            width: 210px;
            height: 50px;
            text-decoration: none;
            font-family: "微软雅黑";
            /*position: fixed;*/
            padding-left: 20px;
            color: #8a8989;
            display:block;
        }

        #nav li a:hover {
            /*border-left: 4px solid #1b579a;*/
            color: #155193;
            overflow:hidden;
        }
        #nav li:hover {
            border-left: 4px solid #1b579a;
            color: #155193;
            overflow: hidden;
        }
        #nav:hover {
            overflow: hidden;
        }