*{
    margin: 0;
    padding: 0;
}
#box, #box2{
    width: 100%;
    height: 100%;
}
#box2{
    display: none;
}
.none{
    display: none;
}
.bjdiv{
    width: 500px;
    height: 50px;
    margin: 0 auto;
    line-height: 50px;
    text-align: center;
}
.buts{
    width: 500px;
    height: 100px;
    margin: 0 auto;
    line-height: 100px;
    text-align: center;
}
.content{
    width: 500px;
    height: 500px;
    margin: 0 auto;
    text-align: center;
    background: #598bff;
}
.title{
    padding: 12px;
    font-size: 18px;
    font-weight: bold;
}
.pl{
    padding: 2px 8px;
    width: 300px;
    height: 22px;
}
.tj{
    padding: 4px 10px;
}
.plq{
    width: 80%;
    height: 400px;
    margin: 10px auto;
}