Most people have gotten the answer basically right — that the rules are different when you serve a page a billion times a day. Bytes begin to matter, and the current level of compression clearly shows that Google is concerned with saving bandwidth. A few points: One, people are implying that Google’s reasons for saving … Read more
This is an issue that’s been bothering me as well for a while, esp when faced with maintaining code that’s been touched by numerous developers. You often encounter multiple JS libraries (some of which essentially does the same thing) included in one solution, not to mention even different versions of the same framework used in … Read more
Leave out the <p> tag unless the content of your table cell is truly a paragraph. It’s certainly possible to have paragraphs in tabular data, and in that case a semantic <p> would be appropriately placed. But for the common table with data in the cells eg. numbers, names, etc., don’t include the <p>.
In November 2005, Matt Cutts, a Google software engineer, said: Google’s home page doesn’t validate and that’s mostly by design to save precious bytes. Will the world end because Google doesn’t put quotes around color attributes? No, and it makes the page load faster. Source: Google Blogoscoped – Matt Cutts, Google’s Gadgets Guy (Interview)
Only inline elements may be contained within inline elements. span is an inline element. So, tags like a, img, sup, etc. can go within a span, but block level elements like div and p cannot. UPDATE In reality, different elements which default to inline display behave differently. Some “inline” elements may allow block elements (a … Read more
Note, that not all characters are submitted for name attributes of form fields (even when using POST)! White-space characters are trimmed and inner white-space characters as well the character . are replaced by _. (Tested in Chrome 23, Firefox 13 and Internet Explorer 9, all Win7.)
Example stolen from here (where there is also a description of the differences): URL http://www.pierobon.org/iis/review1.htm URN www.pierobon.org/iis/review1.htm#one URI http://www.pierobon.org/iis/review1.htm.html#one
My understanding was that using <th> for row headers was not just legal but encouraged As far as I know, this was always legal in HTML 4 (and possibly its predecessors), and hasn’t changed in HTML5. W3C’s HTML5 validator, while still experimental, reports no warnings or errors. Then again, I’m sure the HTML5 validation Visual … Read more
I recommend reading Cool URI’s Don’t Change by Tim Berners-Lee for an insight into this question. If you’re using parameters in your URI, it might be better to rewrite them to reflect what the data actually means. So instead of having the following: /index.jsp?isbn=1234567890 /author-details.jsp?isbn=1234567890 /related.jsp?isbn=1234567890 You’d have /isbn/1234567890/index /isbn/1234567890/author-details /isbn/1234567890/related It creates a more … Read more
As others have mentioned, using <strong>, <em>, <cite> etc. adds semantics. This is important because you say something about why you want to emphasize something and increase the readability of your html, because you know why it’s in bold. Furthermore, screen readers use the strong tags to make an audible difference when reading it aloud. … Read more