Thin gray lines on accordeon

Happy new year to all of you and welcome back.

A while ago @Bill gave great support on how to remove the thin gray lines of the tab bric.

Is there anyone who has a solutionto get rid of these lines on accordeons or which class to use?

Thanks Karl

For each card, uncheck the border setting in the sidebar and then create a .card-header class and set the border-bottom width to zero.



Hey @Bill,
Haven´t be arround for a few days and hope you are well.
But don´want to miss to say Thanks.
I must have been blind not seeing the border settings.