What are the PG rules for HTML texts?
1. The only absolute rule is that the HTML should be valid according to one of the W3C HTML standards, and, if used, CSS must also be valid. You can verify that your HTML is valid at the W3C’s HTML Validator at http://validator.w3.org/ You can verify that your CSS is valid at the W3C’s CSS Validator at http://jigsaw.w3.org/css-validator/ For a more convenient and friendly, though less official, check of the correctness of your HTML, you should use Dave Raggett’s Tidy program at http://tidy.sourceforge.net, which not only points out any messiness in your HTML code, but also has some neat modes to clean it up and standardize the formatting. After that, we have some requirements and recommendations. Compliance with the requirements may be waived if there is a really good reason to make an exception in this case. 2. Requirement: File names and extensions All file (and, if present, subdirectory) names and extensions should be in lower-case throughout, and should use only the letters “a” thr