.watermark_div{
    position: absolute;
    overflow: hidden;
    /* z-index: 9999; */
    pointer-events: none;
    opacity: 0.2;
    filter:Alpha(opacity=20);
    font-size: 15px;
    font-family: unset;
    text-align: center;
    display: block;
    visibility: unset;
    transform: rotate(-45deg);font-size: 15px; color: rgb(0, 0, 0); width: 150px; height: 80px; line-height: 80px;
}

#watermark-show{
    position: fixed;
    bottom: 0;
    top: 0;
    left: 0;
    right: 0;
    pointer-events: none;
    /* z-index: 9999; */
    overflow: hidden;
}