.div_menzen{
    width:100%;
    min-height: 300px;
    background-color:#fff;
}
.selecs{
    width:calc((1013/1050)*100%);
    height:71px;
    margin:auto;
    border-bottom:1px solid #c7c7c7;
    box-sizing: border-box;
    display: flex;
    overflow: hidden;
}
.selecs>div{
    flex: 1;
    text-align: center;
    font-size: 18px;
    font-family: "微软雅黑";
    line-height: 70px;
    cursor: pointer;
}
/* 选中的Class */
.hj{
    position: relative;
}
.hj::before{
    position: absolute;
    left:0;
    bottom:0;
    width: 1px;
    right:10px;
    margin:auto;
    content:"";
    border-top:5px solid #fff;
     border-bottom:8px solid #b9b9b9;
    border-left:8px solid #fff;
   border-right:8px solid #fff;
}
.shijian{
    width:calc((1013/1050)*100%);
    margin:auto;
    text-align: center;
    margin-top:42px;
}
.biaodan{
    width: 100%;
    font-size: 16px;
    line-height: 170%;
    font-family: "微软雅黑";
}
.biaodan>img{
    width: 100%;
}