::highlight(margin-highlight-preview) { background-color: rgba(149, 122, 134, 0.3); color: inherit; } ::highlight(margin-scroll-highlight) { background-color: rgba(149, 122, 134, 0.5); color: inherit; } ::highlight(margin-page-highlights) { background-color: rgba(149, 122, 134, 0.25); color: inherit; } .margin-notification { position: fixed; bottom: 24px; right: 24px; z-index: 999999; }