Lecture Notes for 09.22.05 CISC103 (0) CSS Properties For example, in the style sheet below: In this style sheet, both color and font-family are called "properties". Some other important properties (worthy of memorization, though I would not expect you to memorize ALL of the dozens of properties in CSS) font-size font-family background-color font-weight color Some values for font-family (generic cnes) serif cursive sans-serif fantasy monospace (2) Reading notes online... working towards a midterm in 3 weeks or so... Right now, the link is to ch04.xml I will update where this points periodically. (3) Validation The whole purpose of standards is to be able to be sure that a web page conforms, which means that it is more likely to work on lots of different browsers, and more likely to continue to work well as equipment, devices, software, etc. change over time. validator.w3.org is a place you can go to check if a web page is valid. We checked the http://copland.udel.edu/~pconrad/cisc103 and found 5 errors. We fixed them... In some sense, there were only two errors: (a) I wasn't using & instead of & inside the URL that was pointing to the JSP page for the official UD Catalog course description... I just did a cut and paste after going to the "course description" page off the main UD web site, and came up with: http://chico.nss.udel.edu/CourseDesc/courseInfo.jsp?&year_from_to=20042005&course_id=CISC103 I just pasted that into my web page in the tag... what I should have done was to convert the & symbols into & (b) The second problem was that in my link to my own home page: Phillip Conrad I needed quotation marks around the value of my href attribute. That turned into 5 error when I validated.. so if you see a report that says 271 errors, don't panic... always fix the first problem in the file... that might cause several errors to go away. Three underlying errors in your coding can result in 271 errors reported, if the errors are in a particularly sensitive place. (3) In the reading notes for section 4.3 it mentions a bunch of yada yada yada at the top of the XHTML examples in the pink book... and it says that you'll be told in Chapter 20 what it all means. I'm going to tell you now It is a way of signalling to a validation service such as validator.w3.org which "standard" you are aiming for. The example in the Pink book uses: which is a very up-to-date 21st century standard. My own CISC103 home page is written to a old 20th century standard: and, as we saw today, I only "just now" got it up to snuff.