a11y (accessibility) toolbar

Goals

• Subtle, yet noticeable; easy to use
• Minimally "designed" so that anyone and everyone can and will want to use it on their site, blog, ecommerce, etc.
• Doesn't change existing site layout, but will enhance readability when used
• Semantic; assistive technology and keyboard accessible

Known issues (things in-progress)

• Only Firefox and Webkit browsers can desaturate
• There are tiny shifts in the sizes of the icons when the font size is increased
• Sometimes the styles of a website might take precedence over styles for the toolbar
• The skip link currently looks for a specific ID; I'd like to make it more relative, perhaps by skipping to HTML5's role='main' instead