.frame_crop :where(header, footer, .cc-window, .breadcrumb, #sidebar) {
    display: none !important;
}
.frame_crop #main-content {
    position: fixed !important;
    width: 100% !important;
    height: 100% !important;
    margin: 0 !important;
    inset: 0 !important;
    overflow: scroll !important;
}