Sec. 0 Resource
Sec. 1 HTML and CSS
Sec. 2 bootstrap
Sec. 3 Fixed Background
Sec. 5 Affix objects to top
Sec. 6 Detect current positions
Sec. 7 ScrollSpy: detect current element
Sec. 8 Parallax Scrolling Vertically
Sec. 9 Area map
Sec. 11 Horizontal Scrolling
Sec. 12 Scrolling to animate
Sec. 13 Comprehensive