DOM
<!DOCTYPE html > <html lang ="en" > <head> <meta charset ="UTF-8" > <title> Title </title> <style> * { margin : 10 px ; } </style> </head> <body> <input type ="text" id ="num1" placeholder ="Please Enter Number" value ="" > <br> <input type ="text" id ="num2" placeholder ="Please Enter Number" value ="" > <br> <button onclick =" Add () ; " > + </button> <button onclick =" Sub () ; " > - </button> <button onclick =" Mul () ; " > * </button> <button onclick =" Div () ; " > / </button> <button onclick =" mod () " > % </button> <input type ="text" id ="result2" placeholder ="Result" value ="" > <br> <d...