HTML Forms by building a Registration Form 41

Please me out, I cannot complete this level

fieldset:not(:last-of-type) {border-bottom: ... }

Just one pair of {}


Please what is the concept of the “em” and “rem” when we’re doing width and margins?
I looked it up but it’s still a little unclear

It’s like pixels. It’s a measurement, just different. Pixels are fixed and never changing. When you have em it just calculates the size related to the font you set for the parent element. With rem is the same only it goes up to your html element - not just the nearest parent.
So if your font is 20px and you’ve got 2em that means the size of your em will be 40.

thanks a lot kuska…it’s clearer now