CSS Selector Shell: See What the Browsers See
Lindsey Simon was always a great guy to chat with at Google. He always had an idea and something cool that he was working on. His latest little tool is fun to play with. It is called CSS Selector Shell and it “is a browser-based tool for testing what CSS becomes in different browsers. It works by taking some raw text, inserting a dynamic STYLE element into the HEAD with that raw text as its content, and then reading the CSSOM to see what the browser has parsed it into. It is written in Javascript.”

