.introjs-helperLayer {
    background: transparent;
}
.introjs-overlay {
    display: none;
}
.introjs-helperLayer:before {
    opacity: 0;
    content: '';
    position: fixed;
    width: inherit;
    height: inherit;
    box-shadow: 0 0 0 1000em rgba(0, 0, 0, .7);
    opacity: 1;
}
.introjs-helperLayer:after {
    content: '';
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    position: fixed;
    z-index: 1000;
}