.helperModel{
    position: fixed;
    right: 0;
    top: 50%;
    width: 26px;
    height: 50px;
    margin-top: -25px;
    & > img {
        display: block;
        width: 100%;
        height: 100%;
        &:active{
            opacity: .8;
        }
    }
}
.screen{
    overflow: initial;
}