.buttonFunAreaSelectPlus{
    position: absolute;
    right: -100px;
    top: 0;
    width: 100px;
    height: 50px;
    text-align: center;
    line-height: 50px;
    color: white;
    cursor: pointer;
}
.buttonFunAreaSelectPlus:nth-child(2){
    top: 50px;
}