.bd_toc_progress_bar {
    &.progress_bar_open{
        .bd_toc_widget_progress_bar {
            position: fixed;
            margin: 0;
            padding: 0;
            left: 0; 
            height: 5px; 
            background-color: rgba(17,64,255,0.71); 
            transition: all linear 0.1s; 
            z-index: 999999999999;
        }
    }
}