A very important thing when editing any page on this Wiki is to make sure you are always editing in source code. To do this, press the "Source" button in the upper right corner of the edit window. If you do not do this, many of your changes will be superficial, not work as intended, and even delete code from the pages! If you want to set your preferences so that you are always editing in source, and never have to hit the button again, go to Change Settings to Always Edit in Source.