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This is the same issue you have when you add newlines in places with s which are styled by css and you get visual spacings between elements you didnt want. 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. Its totally valid to do these things for your enjoyment of minimalism or optimisation. Perhaps some of them make your code more readable too. Minimalism isnt always the best idea. the XML declaration is included. We make use of First and third party cookies to improve our user experience. The public identifier included in the DOCTYPE declaration must reference one of the three DTDs found in DTDs using the respective Formal Public Identifier. content of the script or style element within a CDATA marked section avoids the expansion of these entities. Remember that attribute minimization is supported. a change. Element and attribute names must be in lower case. Be aware that processing instructions are rendered on some user agents. W3C liability, trademark, document use and software licensing rules apply. WebDefinition and Usage. Elements that are declared in the DTD as EMPTY can have an end tag or can use empty element shorthand (see Empty Elements). (HTML is my main focus area, so Im augmenting this by links to some of my articles.). called enumerated attributes. "#foo" do not refer to elements with an attribute name="foo"; rather, they refer to elements with an attribute defined to be of type ID, e.g., the id Note: The xmlns attribute in , specifies the xml namespace for WebThe attributes individually are not necessarily required, but in total at least one attribute must be provided to indicate. scipy.optimize.minimize SciPy v1.10.1 Manual DOCTYPE in the next chapter. If a user agent encounters an attribute value it does not recognize, it must use the default attribute value. Attribute Minimization. In addition to simplifying the document structure, HTML added support for HTML contributes very little to overall page sizes and this modern way of writing makes pages harder to process. Otherwise, your XHTML document is assumed as an invalid document. Web Design Tutorials & knowledge: How to attribute In XHTML, attribute minimization is forbidden, and the multiple attribute must be defined as Share Improve this answer Follow answered Jan 6, 2017 at 1:30 Russell Jonakin 1,686 17 18 So I must follow the XHTML standard? Say what you will, I will always use self-closing tags for elements without a closing tag. WebHTML 4 also introduced the idattribute. must specify the xml namespace for the document. This apparent difference can be addressed in two ways: In both SGML and XML, the ampersand character ("&") declares the beginning of an entity reference (e.g., ® for the registered trademark symbol ""). Historically, the character encoding of an HTML document is either specified by a web server via the charset parameter of the HTTP Content-Type header, or via a meta element in the Empty elements need to be closed. This plethora of new elements has led to interoperability problems for documents across different platforms. You can play with html/xhtml by deleting tags at their middle and see the display and render working as fine as possible too. The original idea to allow sloppiness to be the language of the Web is not something I support. 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. Save my name, email, and website in this browser for the next time I comment. and . XHTML 1.0 - Differences with HTML 4 - W3 WebA. You may not use XHTML (anymore), but when you write HTML, you may be more influenced by XHTML than you think. One thing I learned in 30 years of coding: Code should always be as uniform as possible. Note that the collection of legal values in XML 1.0 Section 2.3, production 5 is much larger than that permitted to be used in the ID and NAME types defined in HTML 4. Modularization specification). being of the internet media type defined in that statement. corresponding items attribute requirements or the location allowing mixing of attributes. Attributes BCD tables only load in the browser with JavaScript enabled. Given an empty instance of an element whose content model is not EMPTY (for example, an empty title or paragraph) do not use the minimized form (e.g. These DTDs and entity sets form a normative part of this specification. While in principle, just HTML is leaner and cleaner, the reality is it makes a bunch of assumptions. In SGML and XML, these are When using the min attribute, ensure this minimum requirement is understood by the user. Due to the fact that XHTML is an XML application, certain practices that were perfectly legal in SGML-based HTML4 [HTML4] must be 4 Voyager Modules. This second edition is not a new version of XHTML 1.0 (first published 26 January 2000). My basic takeaway after reading this anarchic manifesto is: Just because you can, doesnt mean you should.

Ciao bella!

. XHTML syntax is very similar to HTML syntax and almost all the valid HTML elements are valid in XHTML as well. Although there is no requirement for XHTML 1.0 documents to be compatible with existing user agents, in practice this is easy to accomplish. The annotated contents of this file are available in this separate section for completeness. Because of this change, care must be taken when converting existing HTML documents. Use both the lang and xml:lang attributes when specifying the language of an element. Finally, HTMLHTML not XHTMLHTML also allows to minimize attributes. Everyone wants an edge during the N.B.A. I believe this was first reported in #1058 If providing instructions outside of labels, which allows more flexible positioning and design, consider using aria-labelledby or aria-describedby. small set of guidelines. Same as js slowly is overtaken by typescript, I sincerely hope that w3c will apply similar code quality mechanics to HTML. Attribute names must be in uppercase B. what is attribute minimization in html Wrong! Write a DOCTYPE declaration at the start of the XHTML document. Here is the example showing syntax , XHTML does not allow attribute minimization. Every single time. WebAttributes should be quoted Tags should nest not tag Unused elements may be minimized Unknown attributes are ignored by the browser. Instead of using name = "name", XHTML prefers to use id = "id". Fewer mistakes. In order to portably present documents with specific character encodings, the best approach is to ensure that the web server provides the correct headers. Provide instructions to help users understand how to complete the form and use individual form controls. As a result, attributes such as compact and checked must be written in full. Attributes Some have lucky shoes. The annotated contents of this file are available in this separate section for completeness. Ultimately, it will be possible to develop XHTML-conforming content that is usable In practice, the part of the attribute minimization rules that browsers support consists of just the special cases where an attribute is declared as allowing a single keyword value only, such as the checked attribute, which is formally declared with A list of current W3C Recommendations and other technical documents I would love to see the VS Code plugin that converts from XHTML way of writing to HTML of writing. Youve disguised something subjective with a veneer of objectivity. For me this sort of attribute declaration feels less readable probably because Im being asked to parse it as Disabled is Disabled which just makes my eye twitch. XML all the things. For HTML, this had a profound effect: The effect that we learned to write it the XHTML way. In XHTML-conforming user agents, the value of the encoding declaration of the XML declaration takes precedence. This applies to HTML as well als CSS and JS. Attribute names such as compact and checked cannot occur in elements without The following hints will reduce this effect for documents which are served without However, In XML, fragment identifiers are of type ID, and there can only be a single attribute of type ID per element. A. source B. src C. xmlns D. link Answer & Solution Discuss in Board Save for Later 18. I dont want to have to remember which tags need closing. while Id gladly use these features for minification actually writing code requires it to be readable and predictable so all you can skip X become even though syntax allows it you can not skip X, closing tokens and consistency of attributes makes things much easier to handle by a human being, even if machines dont care, being a bit verbose in source code makes your life in future much easier. My goodness, I got so much flax in a Discord Channel because I ventured out and started not closing my tags. I would argue that articles such as this, while innocently describing the true specification for HTML5, is actually normalising bad practice. But thats different from persuading the working developer to care. Both of these attributes are designed to be used as fragment identifiers. This attribute is constrained such that it can only have the same values as type ID, or as the Name production in XML 1.0 Section 2.3, What you refer as Linux is actually GNU + Linux etc etc. Which of the following statement is true Otherwise, were left with the mess from back in the day when most browsers had to be very forgiving of the horribly broken HTML which was rampant at the time. Why would anybody want to write uppercase tags? The following example shows how , The language attribute of the script tag is deprecated. Attribute values may not always be quoted. 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. If you tried to validate a page containing instances of attribute minimization, for a document to be valid XHTML, attribute cannot minimized (York, 2005). http-equiv="Content-type" content="text/html; charset=EUC-JP"/>). HTML addressed the problem of SGML HTML 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. My code still validated perfectly. Your Questions Answered #4 | HTML5 Doctor One is the mental overhead of remembering things you really dont need to remember. By using this website, you agree with our Cookies Policy. This is correct: Use both xml:lang and the HTML lang attribute if you also want to be able to process the document on HTML processors. DigitalOcean provides cloud products for every stage of your journey. Back in the day all-caps HTML seemed to be the standard and as I recall the argument was that it was more readable / easier to distinguish between HTML and Content. An XHTML document must have an XHTML declaration. or must display the document in such a way that it is obvious to the user that normal rendering has not taken place. Essentially this means that all elements must production 5. HTML attribute in HTML 4. About the only thing I miss from the HTML way is attribute minimalization. One way of walking us back is to negate the rules imposed by XHTML. followed, operates in HTML4 conforming user agents. Changes between this version and the previous Recommendation are XHTML is not not the HTML way, its just not the SGML way. by any XHTML-conforming user agent. Script and style elements need CDATA sections. with XHTML, see the informative note [XHTMLMIME]. I would also hesitate to recommend omitting quotes because well it doesnt offer any benefits. The Abuse from a hysterical crowd, so I just left. Browsers attempted to fix all the problems by guessing what the author meant, which wasnt always correct. Its not a coincidence that this resembles the three ground rules for HTML, that it works with the premise of a smaller payload also leading to faster sites, and that this follows the school of minimal web development. I may be old fashioned (I first learned HTML in the 90s and I made my first commission using it in the early 2000s) but I find that learning and respecting the XHTML mantra helps you be a better front end developer, because its less sloppy and more predictable. In order to ensure that Simplicity is rarely as simple as minimalists like to make it sound. The changes in this document reflect corrections applied as a result of comments submitted by the The following example shows the way in which XHTML 1.0 could be used in conjunction with the MathML Recommendation: The following example shows the way in which XHTML 1.0 markup could be incorporated into another XML namespace: A conforming user agent must meet all of the following criteria: White space is handled according to the following rules. This prohibition applies to all depths of nesting. Then, in the 2010s, we switched back to HTML. For instance,
or

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. Sorry for the question but I'm not familliar with XHTML. HTML, back then, was loaded with elements for layout, packed with presentational code, largely invalid (as its still today), with wildly varying user agent support. to the tag even if you do not include it. 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. These modules will permit the combination of existing and new feature sets when developing content and when designing new user agents. Here is an example of using DOCTYPE . In the 1990s, there was HTML. Here are the important points to remember while writing a new XHTML document or converting existing HTML document into XHTML document . Rediscover HTML, and help shape a new, modern way of writing HTML which acknowledges, but isnt necessarily based on XML. Attributes These are handled inconsistently by user agents. The following elements are not allowed to have any other element inside them. We shouldnt forget those. The Document Object Model level 1 Recommendation [DOM] defines document object model interfaces for XML and HTML 4. I dont always have access to tools that validate the HTML. The XML document object model specifies that element and attribute names are returned in the case they are specified. Golden States Kevon Looney does Joga. For the element, the min attribute defines the lower numeric bound of the measured range. will not tolerate this incorrect usage, and any document that uses an ampersand incorrectly will not be "valid", and consequently will not conform to this specification. 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. The following example shows the difference

and not

). Conceptually its possible, but in practice, it should never be done. General rules mean less strain on your memory. Users looking for local copies of the DTDs to work with should download and use those archives XML does not support attribute minimization. VSCode html code correction is driving me nuts when I innately sense its pointless. 2.3.5 Attribute Minimization. playoffs. Means, it includes all the descending elements. REALLY ! This page was last modified on Feb 24, 2023 by MDN contributors. Under HTML 4, the interpretation of these values was case-insensitive, so a value of TEXT was equivalent to a value of text. This document has been produced as part of the W3C HTML Activity. Its possible to set up a minifier during build, so that you can keep your XHTML-HTML in the repo, and ship only clean HTML-HTML thats what I did and am happy ;). Youve learned HTML the XHTML way. Except for a few. Here is an example showing valid and invalid ways of using tags . Such prohibitions (called "exclusions") are not possible in XML. See Section 6.2 of [HTML4] for more information. Those documents, and any other document conforming to this specification, For example an icon at the end of a label on a button will have slightly more space between the text and the icon than otherwise. The latest status of this document series is maintained at the In an HTML video element, I want to use the minimized controls attribute: