#header .language a{
    display: none;
}
#header .language a.active{
    display:block;
}
/*文档一级分类样式*/
#my_custome_sec:nth-child(2n+1){
    background-color: #f9f9f9;
    padding: 3.125% 0 2.1875%;
}
#my_custome_sec:nth-child(2n){
    background-color: #fff;
    padding: 4.635% 0 3.333%;
}