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 web server--it …
What is the correct way to declare an HTML5 Doctype.
For XHTML 1.x and HTML5 polyglot documents, use both together. W3C HTML Language Tag Page Here is the answer regarding DOCTYPE declaration Use the following markup as a template to …
javascript - How can I enable Visual Studio Code HTML error checking ...
Jun 15, 2017 · Visual Studio Code doesn't have HTML validation by default. But it allows you to add extensions and enable these features. To add HTML validation (linting), open Visual Studio Code, …
html - HTML5: W3C vs WHATWG. Which gives the most authoritative …
Mar 29, 2017 · W3C facilitates community work directly in the WHATWG repositories (bridging communities, developing use cases, filing issues, writing tests, mediating issue resolution) W3C …
How can I build an HTML org.w3c.dom.Document? - Stack Overflow
Mar 14, 2015 · It might just be easier to parse the HTML first with an HTML parser, such as jsoup, and then build your org.w3c.dom.Document by walking through the HTML parser's produced tree …
What does "<html xmlns="http://www.w3.org/1999/xhtml">" do?
What I think was actually going on was this: The <!DOCTYPE html> specified HTML 5 and the document isn't HTML 5. Adding the HTML tag above it didn't get it processed as XHTML -- it got it …
How to set up a local W3C HTML validator server and use it in Rails ...
May 27, 2024 · I would like to incorporate W3C VNU validator for HTMLs to my Rails app in the test environment. I use the w3c_validators gem for Rails as the wrapper for the W3C validator. In default, …
How to validate that HTML matches W3C standards - Stack Overflow
Jun 23, 2010 · I have a project that generates HTML pages using a Velocity template and Java. But most of the pages do not comply with W3C standards. How can I validate those HTML pages and …
W3C HTML validation error - Stack Overflow
I am getting a warning when I try to validate my page in https://validator.w3.org: Section lacks heading. Consider using h2-h6 elements to add identifying headings to all sections. My code is as ...
What's the difference between "//W3C//DTD HTML 4.01" and …
The HTML 4.01 strict doc type i.e "-//W3C//DTD HTML 4.01//" , validates against the HTML 4.01 spec, although it doesn't allow any presentation markup or deprecated elements (such as font elements) or …