JavaScript: Random quote generator

The 1st project on the Full Stack JavaScript Techdegree. This application displays random famous quotes each time a button is clicked and after a predetermined amount of time.

Main technologies: JavaScript
Auxiliary technologies: HTML, CSS
Complexity level: Beginner
Estimated Time to Complete: 9 hours
Concepts: Variables, Loops, Conditionals, Object literal, Random number, DOM manipulation, Time Events

For "Exceeds Requirements":

• Object have at least one additional property
• Additional property prints to the page
• Quotes automatically refresh at regular intervals
• Background color changes to a random color when quote refreshes

Extras:

• Objects have from one to three additional properties
• Simple mathematical logic added to change the color of the text accordingly the brightness of the background random color (for legibility)