FAQ accordion - Js - mobile design working

Salam Moahamad!!, Mabrouk completing Your challenge!,

The px unit is something that gets you started very easily, but it turns into a problem later down the road This article has more details about why you should avoid using px over author units.

but in general I think is each has his one use case, for controlling Layout and font size I think rem unit along side with max-width, and for controlling the width of text ch units make best option as is relative to character , and for controlling elements inside a component I usually go with % , case the component controlled by layout ,and let px for things like border-width or some decorative Pseudo-elements stuff like that.

but over all, Hope this Help! and correct me if am wrong, am in process of learning too,

have a Good Week