@vaida36
1). Go to theme editor (now you’re already viewing style.css), copy the section /* 4.3 WooTabs */ to later paste (anywhere) into custom.css
2)custom.css is actually where you’d replace ALL (10/ten) *woocommerce_tabs* to *woocommerce-tabs*. Do it, save it.
3). Clean your browser’s cache, refresh and you’re all good with the tabs!
