Ah, tags. What a great way to narrow down what you're looking for!
April 2, 2016This floating footer notification code sample shows a toaster at the bottom of the page, regardless of the user scroll, but you could put it anywhere in the page that's visible to the user.
May 28, 2013I envisioned a matrix of dots that, when hovered, would flip their color and slowly fade away.
March 19, 2013I came across an update in CSS3 that gives developers more control over the cursor, which can be another tool to help communicate state or affordance to the user.