Project Definition:
A simple calculator that allows for simple arithmetic operations.

Basic Features:
- Addition
- Subtraction
- Multiplication
- Division

* The project is said to be complete when all basic features have been implemented

Components:
HTML User Interface - required
Style User Interface - optional
Get User Input - required
Calculator Operations - required
Calculator Display

Components Breakdown:
Style User Interface:
- Center main element (calculator)DONE
- Align Elements (DONE)
- Style calculator
    - Style Output element (optional)
    - Style buttons (optional)
- Add animations (optional)

Get User Input:
- get input using HTML buttons (DONE)
- get input using keyboard (optional)

Calulator Operations:
- Addition
- Subtraction
- Multiplication
- Division

Calculator Display:
- Validate User Input (DONE)
- Restrict invalid input (DONE)
- display input/results

WorkFlow:
HTML User Interface - (Done)
Style User Interface (required tasks only): - (DONE)
Get User Input (Done)
Calculator Operations (Done)
Calculator Display (Done)