.wk-prompt{
    position: fixed;
    z-index: 999;
}

.bottom{
    bottom: 0px;
}

.top{
    top: 0px;
}

.bottom-right{
    bottom: 0px;
    right: 0px;
}

.bottom-left{
    bottom: 0px;
    left: 0px;
}