title: What CSS properties govern how a webpage reacts to window resizing?
body: <p>I just wonder because I know that my page goes haywire if you try to make it too small. Facebook, StackOverflow and almost any other well programmed site calmly adjusts the page format until they run out of 'breathing room' at which point the page is just 'eaten' by the browser's borders. How do these well programmed sites format themselves so nicely as to cope with window resizing? Are there CSS properties specifically made to help with this?</p>