.id-scrolling-shortcode-content {
    max-height: 400px;
}

@media screen and (min-width: 768px) {
    .id-scrolling-shortcode-content {
        max-height: 600px;
    }
}

.id-scrolling-shortcode-content {
    overflow-y: scroll;
    padding: 10px;
    box-shadow: inset 0 0 5px rgba(0,0,0,0.15);
    background-color: #fff;
}