.main{
    height: 100vh;
    margin-bottom: -30px;
}
.tr-hover:hover{
    background-color: #d1e7fa;
    cursor: pointer;
}
.halfRow{
    float:left;
    width: 50%;
    text-align:center;
}
.bottom{
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#weixin-tip{display:none;position:fixed;left:0;top:0;background:rgba(0,0,0,0.8);filter:alpha(opacity=80);width:100%;height:100%;z-index:100;}
#weixin-tip p{text-align:center;margin-top:10%;padding:0 5%;position:relative;}
#weixin-tip .close{color:#fff;padding:5px;font:bold 20px/24px simsun;text-shadow:0 1px 0 #ddd;position:absolute;top:0;left:5%;}