.ukeyChoose{
 display: none;
    background-color: rgba(0, 0, 0, 0.4);
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    width:100%;
    height:100%;
    z-index:999;
}
.ukeyChooseChild{
    background-color: white;
    font-family: 'Open Sans', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    width: 478px;
    padding: 17px;
    border-radius: 5px;
    text-align: center;
    position: fixed;
    left: 50%;
    top: 30%;
    margin-left: -256px;
}
.ukeyChooseChild button{
 margin-top:20px;
}
.ukey{
 background: #1e80ff;
}
.headTitle{
 font-weight: 500;
 font-size: 22px;
 margin-bottom: 20px;
}
.sign{
 font-size: 100px;
 color: #ecb819;
 transform: rotate(180deg); 
}
/* .btn-default{
    width: 100px !important;
    height: 36px !important;
    font-size: 14px !important;
    line-height: 10px !important;
} */