# Calculator

Using the HTML, CSS and JS create a single page which will contains a calculator looking similar to the one that you have on your windows. (with some input, buttons, result).

## Requirements:

### .v1

- Responsive design
- Can sum two numbers
- Will display result on the top of the page

### .v2

- Can perform simple arithmetic operations (sum, sub, multiply, divide)
- Can be used with mouse only - It requires numbers (0-9) created as a button

### .v3

- Can see what numbers and operations you are performing (on button click it will display this number/operation on the display)

### .v4

- Can cancel last operation
- Can store the numbers in the memory (localstorage) - it prevents from loosing data on page refresh

### .v5

- Rewrite it in react.js