Examples might be simplified to improve reading and learning. Note: The xmlns attribute in , specifies the xml namespace for
Likewise, using a slash for void elements just makes them more readable (in my opinion); even if the computer doesnt care about them, and theyre there just for us dumb humans. For example, in the following markup code, we define a check box that is Minimizing code to the point that it is non-obvious what it does might shave off a few bits, but only at great cost to legibility. What is XHTML? disabled, readonly, multiple, selected, noresize, defer. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Your email address will not be published. Leaving out quotes for attributes, especially for URLs, is a horrible idea. The list below lists them (the attributes in italics were deprecated between HTML 4 and XHTML 1.0 and should not be used in XHTML. Respectfully, I think that strict conventions tend to make for more readable code. The following example shows the syntax . With build chains and HTML optimizers this is not necessary and just trains new web devs to not care and write code as if its 1990 again. Some like naps. Which is your point. Minifying HTML is so far down on the list of performance optimisations that it might as well not exist, outside of ultra-hyper-optimised stuff like the Google search page. Though, personally, the moment they used just html as a catch all DOCTYPE for the standard (and not at least html5), I lost faith in its standardization. illustrated in a diff-marked version. I mean, you dont have to use line changes in JavaScript, but its horrible to read if you dont use any. Enable JavaScript to view data. White space handling in attribute values is done according to XML. The namespace for XHTML is WebAttributes are defined on the HTML markup but properties are defined on the DOM. XHTML documents are XML conforming. Yes. When defining fragment identifiers to be backward-compatible, only strings matching the pattern [A-Za-z][A-Za-z0-9:_.-]* should be used. I also wonder how many hours are spent globally in HTML design discussions over each element/attribute, which could be spared by saying lets just follow the generic rule allowing time to be invested in more productive discussions about creating new functionality / adding value. A summary of such elements and the elements that should not be nested in them I would argue that the code-coloring features implemented in virtually every modern editor render that argument moot, making all-caps really a matter of personal preference. Why would anybody want to write uppercase tags? could happen if the declaration is in the external subset which the user agent hasn't read), the entity reference should be processed as the characters (starting with the ampersand and ending with For me, XHTML makes so much more sense; not because its XML compatible (though thats a huge bonus); but because it means theres a handful of rules which you can consistently obey to have valid code. The file DTD/xhtml-special.ent is a normative part of this specification. Consider this case: Its not intuitive what the result should be. All XML attributes must have ISO/IEC 9945-1:1990 [POSIX.1]: This version of XHTML provides a definition of strictly conforming XHTML 1.0 documents, which are restricted to elements and attributes from the XML and XHTML 1.0 namespaces. Tooling is available, too: html-minifier is probably the most established and able to handle all HTML optimizations. The latest status of this document series is maintained at the Script and style Yes it works, but I think its just barbaric ;-). html - are attributes without value allowed in HTML4? Indicate any required and optional input, data formats, and other relevant information. When user agents process attributes, they do so according to Section 3.3.3 of [XML]: In XHTML, the script and style elements are declared as having #PCDATA content. In XML, an XML stylesheet declaration is used to define style rules. By using this website, you agree with our Cookies Policy. Readability? XHTML: In XHTML, names are case sensitive and it doesnt allow attribute minimization. I will stick to the XHTML way, thank you. However, All the content onward is bold. HTML Objective type Questions and Answers. Used to do that a lot back in 2012 because of compatibility issues. Remember that some attributes have defaults that allow. HTML addressed the problem of SGML Consistency is definitely the key, do what you want but stay consistent at least! No one ever made a slow website into a fast one by leaving out closing tags. This process may change attributes at the level. It sounds like its illegal for documents to be well-formed. One thing I learned in 30 years of coding: Code should always be as uniform as possible. Good article. Here is an example of an XHTML document. One way of walking us back is to negate the rules imposed by XHTML. A directory of Objective Type Questions covering all CDATA sections are recognized by the XML processor and appear as nodes in the Document Object Model, see Section 1.3 of the DOM Level 1 Recommendation [DOM]. These DTDs and entity sets form a normative part of this specification. At the time of publication, the working group believed there were zero patent disclosures relevant to this specification. is a block element, so the
will terminate before it, right? Note the entity for the Euro currency sign (€ or Just because HTML is more permissive doesnt mean we should lower our standards to it. There is one important consideration, though, that you might want to be aware of. W3C liability, trademark, document use and software licensing rules apply. The low attribute specifies the range where the gauge's value is considered to be a low value. For me, XHTML is more natural, because it requires beginning and endings of most elements In the case of the empty elements, the / signals its end. Perhaps some of them make your code more readable too. My goodness, I got so much flax in a Discord Channel because I ventured out and started not closing my tags. - and
- are different tags. SGML is a language for describing markup languages, particularly those used in electronic document exchange, document management, and document publishing. Golden States Kevon Looney does Joga. Because step defaults to 1, valid values include 7.2, 8.2, 9.2, and so on. Women are some of the strongest warriors the world has ever known, but they can be delicate and strong simultaneously. Additionally, an attribute value may or may not be required as dictated by other configuration such as the. For compatibility with these types of legacy browsers, you may want to avoid using processing instructions and XML declarations. Those documents, and any other document conforming to this specification, Element and attribute names may not be in lower case. There are also downsides to some of these practices. WebAttributes should be quoted Tags should nest not tag Unused elements may be minimized Unknown attributes are ignored by the browser. HTML 4 also introduced the id attribute. Here is a list of the minimized attributes in HTML and how they should be written in XHTML: The lang attribute applies to almost every XHTML element. WebHTML 4 also introduced the idattribute. Copyright 2002 Having started my journey during the dark times of
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