Open demo.html in your browser of choice.
- add "open/close" functionality
- Panel should fade in when a scroll event occurs
- Panel should only fade in when a scroll event occurs AND the end of a content div appears in the viewport
- panel should fade out when content div disappears down
- panel should only fade in when the top of the fade-in element appears in the viewport
- Abstract class names away from selectors
- Make the scroll loop more efficient.
- Make CSS prettier
- change sample content