Internet Explorer's Developer Tools (F12) Overview

Developing a web page is not always a simple matter of creating code on your computer, uploading it to the server and it works.  The interaction of your page, CSS stylesheets, javascript code (sometimes yours, sometimes external) and the framework of other files that may wrap around your code often produce odd results that you need to debug within the browser itself to figure out.  Until browser-based developer tools like Microsoft's F12 Developer Tools or Firebug came along, all you could do was view the source of your page and stare until you went cross-eyed.  Now that these tools exist, by all means use them!  I plan to write a series of posts about developer tools, starting with this overview of Microsoft's F12 Developer Tool.