I would appreciate clarification of allowed use of w3.css and w3codecolor.js. As explained on page http://www.w3schools.com/w3css/w3css_downloads.asp w3.css is "free to use. No license is necessary." Later we read "Or download w3.css and run it from your own web site" and "You can customize W3.CSS by changing ...". These quotes suggest that everybody can: - use w3.css file, - download it, - provide it from one's page (so, distribute), - customize. However, it is not clear if one can put customized w3.css on one's page. If W3Schools agrees with this, it should be stated and probably some conditions should apply. Just one example: I suppose that authors, Jan Egil and Borge Refsnes, would not be happy if somebody distributed modified file with their names without any information about changes. Even more uncertain one may feel using w3codecolor.js. On page http://www.w3schools.com/w3css/w3css_code.asp we read "You can download" it and "use". One can of course use it from the link provided by W3School. However, it is unclear if one can put this file together with one's web page (so, distribute it). Even without any changes, and without real intent of distributing it (one just puts it on other server to highlight some code, and does not want to depend on internet connection with the W3Schools server). Both files include only very short information about authors and version. It would be nice to read there more details about what users are allowed to do. I am very thankful for all the goodies W3Schools provides. These two files are very, very helpful. Probably the intent is that everyone can "free of charge, use, copy, modify, distribute this file if above copyright notice, this permission notice and a list of changes are included" (I am writing only about w3.css and w3codecolor.js). I, and probably all your fans, would be very grateful to clarify this "modification & distribution" issue.