*{
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color:rgba(0,0,0,0)
}
body{
    width: 100%;
    height: auto;
    background-color: #efefef;
}
.a{
    width:15rem;
    height: 1.76rem;
    background-color:#efefef;
}

.favourable-center{
    width:15rem;
    height:auto;
    margin-top:0.3rem;
    background-color: #efefef;
}
.empty{
    width:15rem;
    height:0.14rem;
    background-color: #efefef;
}
.dibu{
    width:15rem;
    height:2rem;
    float:left;
}