Non-Blocking Settings Page UI

We're in the process of making changes to the way our settings pages work. One of the biggest improvements to the interface is speed, both actual speed and perceived speed.

One thing that has helped our perceived speed is the non-blocking UI method which allows us to display to the user our interface before it becomes usable and editable. The user will know what the page will look like (roughly) while we're still loading the data.

This is all done using CSS (no extra markup) and it's very effective.

Callum Hart has written a great blog post on it: http://www.callumhart.com/blog/non-blocking-uis-with-interface-previews