Internal, External, and Inline Scripting - jQuery Tutorials for Beginners. Source code here: http://jquerytutorialsforbeginners.com/3 ... video highlights below.
[0:34] Similarities with CSS
[1:03] Internal scripting (often better for development)
[2:10] External scripting (best for production)
[4:23] Inline scripting (don't do this!)
[7:49] The ideal setup
[8:51] Recommended site for learning CSS: http://www.w3schools.com