Arabic fonts are not supported by defalut you need an api for that so this is what i did to change to arabic font:
1. add this line to the head :or you can choose other fonts from here : https://fonts.google.com/?subset=arabicCode:Only registered members can view the code.
2. go to style.css change font family in the body to
example :
3. try on different browsers to see resultsCode:Only registered members can view the code.