.nav 
{
    padding: 0px 0px 0px 0px;
    width: 100%;
    position: fixed;
    left: 0;
    bottom: 0;
    z-index:999;
}
.nav ul {
    height: 50px;
}
.nav ul li {
    float: left;
    width: 20%;
    text-align: center;
    list-style-type: none;
    margin: 0px;
    padding: 0px;
    background-color:#833310
}
.nav ul li span {
    display: block;
    font-size: 14px;
    font-family: "微软雅黑";
   
}
a {
    text-decoration: none;
}
* {
    padding: 0;
    margin: 0;
    list-style: none;
    font-weight: normal;
}


.navtop {
    padding: 0 0 0 0;
    width: 100%;
    position: fixed;
    left: 0;
    top: 0;
    z-index:999
}
.navtop ul {
    height: 0px;
}
.navtop ul li {
    float: left;
    width: 25%;
    text-align: center;
    list-style-type: none;
    margin: 0px;
    padding: 0px;
}
.navtop ul li span {
    display: block;
    font-size: 14px;
    font-family: "微软雅黑";
    line-height: 22px;
}
* {
    padding: 0;
    margin: 0;
    list-style: none;
    font-weight: normal;
}


.navshop 
{
    text-align: center;
    display: block;
    padding: 0 0 0 0;
    width: 100%;
    position: fixed;
    left: 0;
    bottom: 0;
    z-index:999
}
.navshop ul 
{
    text-align: center;
    display: block;
    height: 0px;
}
.navshop ul li20 
{
    display: block;
    float: left;
    width: 20%;
    text-align: center;
    list-style-type: none;
    margin: 0px;
    padding: 0px;
}
.navshop ul li30 
{
    display: block;
    float: left;
    width: 30%;
    text-align: center;
    list-style-type: none;
    margin: 0px;
    padding: 0px;
}
.navshop ul li10 
{
    display: block;
    float: left;
    width: 100%;
    text-align: center;
    list-style-type: none;
    margin: 0px;
    padding: 0px;
}
.navshop ul li span {
    display: block;
    font-size: 14px;
    font-family: "微软雅黑";
    line-height: 22px;
}