html, body, div, ul, li, a {
    margin: 0px;
    padding: 0px;
}
body {
    font-size: 14px;
    font-family: "微软雅黑";
    background: #fff;
}
ul {
    list-style: none;
    z-index: 99999;
}

a {
    text-decoration: none;
    z-index: 99999;
}

.header 
{
    width: 100%;
    height: 60px;
    line-height: 50px;
   background: #0097C2;   /*menu color was #128A28*/

}
    .header .nav {
        width: 850px;
        margin: 0 auto;
        position: relative;
        z-index: 99999;
    }

        .header .nav li {
            float: left;
            width: 12%;
            height: 50px;
            text-align: center;
            list-style: none;
            font-size: 16px; 
        }

            .header .nav li a {
                color: #fff;
            }

            .header .nav li .second-nav {
                width: 120px;
                display: none;
                position: relative; 
            }

                .header .nav li .second-nav li {
                    position: relative;
                    width: 100%;
                    height: 40px;
                    line-height: 40px;
                    background: #0097C2;  /*menu color was #128A28*/
                    border-top: 1px solid #097d1f; 
                }

                    .header .nav li .second-nav li .third-nav {
                        /*position: absolute;*/
                        width: 120px;
                        height: 200px;
                        display: none;
                        margin-left: 100%;
                        margin-top: -40px;
                        list-style: none;
                        z-index: 999999;
                    }