.viewport {
    width:100%;
    height:100%;
    top:0px;
    left:0px;
    position:absolute
}

.viewporttouch {
    touch-action: none;
}

.overlay {
    position: absolute;
    color: #e4ad00;
    font-family: Roboto!important;
    /* prevent text selection on overlay */
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;

    /* ignore pointer event on overlay */
    pointer-events: none;
}

.overlayitem {
    padding: 2px;
    font-size: 15px;
}

.hidden {
    display: none;
}