February 2006
Intermediate to advanced
826 pages
63h 42m
English
Content preview from Web Design in a Nutshell, 3rd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Validate Your Markup
You can’t play fast and loose with the strict standards the way you could with old HTML. Code written incorrectly may render strangely or not at all. While HTML was always meant to be validated, it is now more important than ever to validate your markup before you publish your content on the Web.
Some HTML editors, like BBEdit by BareBones Software, have built-in validators. You may also use the W3C’s free validation tools for HTML/XHTML (http://validator.w3.org) and CSS (http://jigsaw.w3.org/css-validator).
Be forewarned: the error reports a validator spits out can be overwhelming. One of the problems is that errors are inherited, so if you make a mistake early on (such as forgetting to close a tag) the validator gripes about it in multiple error lines. Try fixing early mistakes and then validating again; chances are, the error list will reduce.
Error messages can also be confusing. The W3C has published a list of common error messages and how to interpret them at http://validator.w3.org/docs/errors.html.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.