Chapter 2, Problem 3.16CP

Create a div element with a width and height of 500 px. Create a diagonal linear gradient using colors of the rainbow- Red, Orange, Yellow, Green, Blue, Indigo, Violet.  Also create another div element with a width and height of 600 px. create a radial gradient with three colors. Start in the bottom left corner with the colors changing as they move along the gradient line to the right