What does "<html xmlns="http://www.w3.org/1999/xhtml">" do?
Apr 29, 2011 · Its an XML namespace. It is required when you use XHTML 1.0 or 1.1 doctypes or application/xhtml+xml mimetypes.
Include another HTML file in a HTML file - Stack Overflow
Jan 24, 2012 · The w3-include-HTML methode is not really efficient. The script which they have wrote as an example is ...
html - What does the xmlns attribute do? - Stack Overflow
Oct 15, 2013 · Please don't link to a w3schools page with text "W3 standard". See w3fools.com.As is the norm, w3schools is not wholly correct here - it does not specify the …
html - Single vs Double quotes (' vs ") - Stack Overflow
The w3 org said:. By default, SGML requires that all attribute values be delimited using either double quotation marks (ASCII decimal 34) or single quotation marks (ASCII decimal 39).
html - What is href="#" and why is it used? - Stack Overflow
Jan 31, 2011 · This is the expected behavior according to the w3 documentation. Hyperlink placeholders: An example where a hyperlink placeholder makes sense is within template …
validation - Validate HTML on local machine - Stack Overflow
Jan 26, 2015 · For HTML 5, you can use xmllint --noout --html page.html to validate one file. xmllint comes with the libxml2-utils package. w3c-markup-validator is meant to be used with a …
HTML 5: Is it <br>, <br/>, or <br />? - Stack Overflow
Dec 22, 2009 · I've tried checking other answers, but I'm still confused — especially after seeing W3schools HTML 5 reference. I thought HTML 4.01 was supposed to "allow" single-tags to …
html - How to hyperlink an image - Stack Overflow
Apr 19, 2017 · As others mentioned in comments you want to surround the image in an anchor <a> tag and apply the href attribute to the anchor tag as you would a normal hyperlink.
html - HTML5 Email address input pattern attribute - Stack Overflow
I’m trying to make a html5 form that contains one email input, one check box input, and one submit input. I'm trying to use the pattern attribute for the email input but I don't know what to …
html - Setting table column width - Stack Overflow
Mar 13, 2022 · The best practice is to keep your HTML and CSS separate for less code duplication, and for separation of concerns (HTML for structure and semantics, and CSS for …