body {
    padding: 10px;
    font-family: Helvetica, sans-serif;
}

.pic {
  background-position: center;
    margin-top: 10px;
    width: 100%;
    height: 200px;
    background-size: contain;
    background-repeat:no-repeat;
    /*background-image: url(/old/img/wifi_show.png)*/
}

/*.pic > div {*/
/*  width: 100%;*/
/*  height: 200px;*/
/*  background-size: contain;*/
/*  margin: auto;*/
/*}*/

.tips {
    margin: 20px auto;
    line-height: 30px;
    padding:20px;
    margin-top: 25%;
}

.action {
    margin-top: 20px;
    background-color: #06be04;
    border-radius: 4px;
    height: 40px;
    text-align: center;
    color: white;
    line-height: 40px;
    font-size: 18px;
    width: 60%;
    margin-left: 20%;
}

.wifi {
    /*background-image: url(/old/img/airkiss.png)*/
}