.content {
    margin-top: 72px;
    margin-bottom: 50px;
    padding: 10px;
}
.search {
    width: 100%;
    position: fixed;
    height: 72px;
    left: 0;
    top: 0;
    background: #fff;
    z-index: 999;
}
.search_f {
    display: flex;
    height: 45px;
    background: #f5f5f5;
    color: #999;
    margin: 16px;
    border-radius: 4px;
    align-items: center;
    padding-left: 16px;
}
.search .icon-search {

}
.search span {

}
.list_a{
    width: 100%;
}
.list_a ul{
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
}
.list_a ul li{
    text-align: center;
    width: 20%;
    height: 30px;
    margin: 0 10px 10px 10px;
    background: #ffffff;
    border-radius: 15px;
    line-height: 30px;
}
.list_a ul a{
    font-size: 13px;
    color: #333333;
}
.content_h h3{
    font-size: 16px;
    color: #999999;
}
.list_b{
    display: flex;
}
.list_b li{
    margin-right: 10px;
}
.active{
    font-size: 20px;
}