Help understanding my website =)

[RubberDuck]

I designed a site using wordpress, and used a theme to spruce it up a bit. I really like what goes on at the top of the page when you scroll down. Ive seen similar things on other themes as well. My goal is to understand what accomplishes the effect.

Please feel free to visit my page, take a look, and offer some feedback.

Rubber Duck Consulting – Technology Made Simple