.set_button{
background-color: rgba(255, 255, 255, 0);
border: 0px;
height: 120rpx;
right: 20rpx;
bottom: 20rpx;
position: fixed;
}
.set_button::after{
border: 0px;
}
.set_image{
width: 120rpx;
height: 120rpx;
}