The webpage contains the menu, three main sections and the footer.

1. Each button of the menu reference to their section.
2. The first section is the Price index of the main Cryptocurrencies nowdays. The api is                  from Coingecko and it's free. In this section
   we have two buttons to add or remove items in the section.
3. The second section has a button to order the first twelve coins in an Alphabetic order.
4. The third section has one button to show a random item. Each click on the button is changing the item showed.
5. The footer contains the main webpages visited.