There are no laws regulating the national dress code. You can wear whatever you want in Morocco. Showing too much skin is generally looked down upon. In men, it shows a lack of style and in women a lack of decency.

In Morocco, the clothes you wear reflect your social status more than anything else. Even those with the least financial means will try and dress as smart as they can.
Beards and traditional garments like the djellaba are often shunned by Moroccans with more "western" attitudes as they are seen to represent devout Muslim values and beliefs.