[wittjeff]

This is cool. If you add automatic support for the ARIA-label property (just duplicate your text content in the ARIA-label), this could be an accessibility tool. Otherwise you're basically hiding potentially needed info, which might normally be in ToolTips, from users with disabilities.

See https://developer.mozilla.org/en-US/docs/Accessibility/ARIA/... for info and http://freedomscientific.com/products/fs/JAWS-product-page.a... for a demo of the most popular screen reader for blind users.

You might also want to think about tying your CSS colors to system colors, to support users who use High Contrast mode.