Create a new selector that targets the last fieldset element and set its border-bottom to none

I’m stuck on this one, not sure what I’m doing wrong, from other posts I thought I had it but obviously not. Can anyone advise? PSB screenshot.

If you have a question about a specific challenge as it relates to your written code for that challenge and need some help, click the Ask for Help button located on the challenge (it looks like a question mark). This button only appears if you have tried to submit an answer at least three times.

The Ask for Help button will create a new topic with all code you have written and include a link to the challenge also. You will still be able to ask any questions in the post before submitting it to the forum.

Thank you.