Linux puskom-ProLiant-DL385-Gen10 5.4.0-150-generic #167~18.04.1-Ubuntu SMP Wed May 24 00:51:42 UTC 2023 x86_64

//home/puskom/mastur/post-grid/includes/blocks/tabs-nested/index.css

 .pg-tabs {}

.pg-tabs-panel {
    display: none;
}

.pg-tabs-panel-active {
    display: block;
}