body {
    background: transparent;
}
.topic{
    position: absolute;
    top: 0%;
    left: 0%;
    width: 100%;
    height: 100%;
}
.box{
    width: 100%;
    height: 100%;
}
.radio div{
    width: 29%;
    height: 5.5%;    
    position: absolute;
    left: 7%;
    top: 29.8%;
    cursor: pointer;
}
.radio div img{
    width: 2.82vw;
    height: 2.82vw;
}
.topic_1 div:nth-child(2){
    width: 40%;
    left: 50.2%;
}
.topic_2 div:nth-child(1){
    width: 18%;
    top: 49%;
}
.topic_2 div:nth-child(2){
    width: 29%;
    left: 50.2%;
    top: 49%;
}
.topic_3 div:nth-child(1){
    width: 18%;
    top: 68.3%;
}
.topic_3 div:nth-child(2){
    width: 24%;
    left: 50.2%;
    top: 68.3%;
}
.gameBox_btn{
    position: absolute;
    top: 81%;
    left: 50%;
    transform: translateX(-50%);
}