.sub_nav {
     margin-top: 20px;
     margin-bottom: 20px;
}

.sub_nav li.odd {
    display: none;
    float: left;
    width: 10px;
    height: 40px;
   
    font: normal 16px/30px "微软雅黑";
}

.sub_nav li.even {
    float: left;

    /* width: 120px; */
    height: 40px;
  
    text-align: center;
    margin-left: 10px;
    margin-right: 10px;
}

    .sub_nav li a {
        display: block;
        text-decoration: none;
        color: #b73234;
        background: white;
        display: inline-block;
        /* color: #b73234; */
        font: normal 16px/30px "PingFang SC,Hiragino Sans GB,Microsoft YaHei,WenQuanYi Micro Hei,Helvetica Neue,Arial,sans-serif";
        padding-left: 15px;
        padding-right: 15px;
        border-radius: 39px;
        border: 1px solid #b73234;
    }

    .sub_nav li a.current {
       
        color:white;
        background: #b73234;
    }

.sub_nav li a:hover { text-decoration: none; }