what are the different versions of html in html and html

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- What are the different doctypes in html and what do they mean?
  Top Answer
  Answered Feb 26, 2021 · 54 votes
  Traditionally, a Doctype, or Document Type Declaration associates the document with a Document Type Definition.
  The Document Type Definition is a standard for a specific XML or SGML document. XML and SGML themselves doesn't have much of a schema or a very specific set of rules aside from how tags and attributes work in general. You can think of a DTD a description of the rules for a particular kind of document (like HTML, SVG or MathML). They say what tags are allowed where (e.g. that an html element must contain exactly one head element followed by exactly one body element).
  There are alternatives to DTDs such as XML Schemas that are more commonly used today.
  Browsers, however, do not use DTDs at all. They read the Doctype to determine the rendering mode, but the rules for parsing the document are entirely baked into the browser.
  This is why HTML 5 has a Doctype (to determine the rendering mode) but not DTD.
  Rendering Modes
  Early web browsers were very buggy. When new versions were released they had to maintain compatibility with their predecessors and rivals. This made it very hard to fix bugs because websites were built that depended on them.
  To resolve this, modern browsers have different rendering modes (standards mode, for rendering your document and css according to standards, and quirks mode, wherein the browser emulates the bugs of earlier browsers, and almost standards mode which sits between the two).
  Choosing a Doctype
  There are two factors to consider when selecting a Doctype:
  Does it trigger standards mode? (For new pages it should, times when you need to be compatible with browsers which don't support standards mode are very rare today).
  Does it support the features I need?
  Generally this means you should use HTML 5. It is the current standard and best reflects how browsers actually work:
  <!DOCTYPE html>-
  
  Failing that. Strict doctypes avoid most features that should be handled with CSS.
  When writing in XHTML 1.0, this Doctype is common:
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">-
  
  More obsolete features are available via:
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">-
  
  When writing in HTML 4.01, this one is common instead:
  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">-
  
  With the obsolete features being in
  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN""http://www.w3.org/TR/html4/loose.dtd">-
  
  and
  <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN""http://www.w3.org/TR/html4/frameset.dtd">-
  
  Note that most of the above have variations (e.g. you can omit the URL and rely on the public identifier) which have implications for the support of standards mode. This article includes an extensive list.
  Debate on Strict versus Transitional Doctypes
  (Note that the following is much, must less true in 2021 than it was in 2008)
  Standards evangelists have called for web developers to stop using the Transitional Doctype on new pages and instead use Strict. Again, this is a case where the theory and the practice have some difficulties being reconciled. The original hope of the transitional Doctype was to provide a halfway house for transitioning legacy websites toward standards-compliance. With transitional doctypes, the restriction on elements and attributes is literally "less strict", so developers would be able to get their work running under standards mode sooner, and phase out the outstanding differences over time.
  Controversy exists because it isn't always quite so simple for a developer change the Doctype in an enterprise environment. Freelance developers and makers of small- or medium- sized websites may often have an easier time determining their Doctype and making this transition. In an enterprise production environment for a highly-demanded web-based service, there are inherently more complicated dependencies on legacy systems and 3rd party code products, which themselves may be on a roadmap for removal or redesign, but the execution of such changes must be done methodically and incrementally.
  Helpful Tools
  The W3C (World Wide Web Consortium) is a group which plays an active role in defining these kinds of standards. They maintain a helpful online tool at http://validator.w3.org/ for verifying and validating documents against their standards. There are many other 3rd party tools and browser extensions with similar functionality.
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  1/5
- HTML: what are the percentages of the heading tags?
  Top Answer
  Answered Jun 16, 2010 · 2 votes
  I found this link with a conversion table.
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  2/5
- HTML clock with Javascript and different timezones on a website that can be used in every location of the world without access to the internet
  Top Answer
  Answered Jun 06, 2023 · 0 votes
  Here I found the first part of my solution
  https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getTimezoneOffset?retiredLocale=de
  and here the second one
  How to add hours to a Date object?
  Here´s the code now, may be someone can tell me additional how I can implement an if else loop to define summer and wintertime, thank you for your help with this!
  <!DOCTYPE html><html><head><script type="text/javascript"> function updateTimeJP() { var date = new Date();date = new Date(date.setHours(date.getHours() + 2)); //date = new Date(date.setHours(date.getHours() + 1)); date.getTimezoneOffset()*-450*1000 ); var stunden = ( (date.getUTCHours()<10?'0':'') + date.getUTCHours() ); var minuten = ( (date.getUTCMinutes()<10?'0':'') + date.getUTCMinutes() ); //var sekunden = ( (date.getUTCSeconds()<10?'0':'') + date.getUTCSeconds() ); var tag = date.getUTCDate(); var monatDesJahres = date.getUTCMonth(); var jahr = date.getUTCFullYear(); var tagInWoche = date.getUTCDay(); var wochentag = new Array("Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"); var monat = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"); //var datum = wochentag[tagInWoche] + ", " + tag + ". " + monat[monatDesJahres] + " " + jahr + ", " + stunden + ":" + minuten + ":" + sekunden ; var datum = wochentag[tagInWoche] + ", " + tag + ". " + monat[monatDesJahres] + " " + jahr; //var uhrzeit = stunden + ":" + minuten + ":" + sekunden; var uhrzeit = stunden + ":" + minuten; document.getElementById('timeJP').innerHTML = datum; document.getElementById('clockJP').innerHTML = uhrzeit; setTimeout(updateTimeJP, 1000); var view; if (datum === "Monday, 17. July 2023") { view = "Marine Day";} else if (datum === "Friday, 11. August 2023") { view = "Mountain Day";} else if (datum === "Monday, 18. September 2023") { view = "Respect for the Aged Day";} else if (datum === "Monday, 09. October 2023") { view = "Sports Day";} else if (datum === "Friday, 3. November 2023") { view = "Culture Day";} else if (datum === "Thursday, 23. November 2023") { view = "Labor Thanksgiving Day";} else { view = "";} -document.getElementById('viewJP').innerHTML = view; }window.addEventListener("load", updateTimeJP);</script> <style> #Text{ text-align: center; font-weight: bold; line-height: 30px; } #timeJP { width: 100%; text-align: center; } #clockJP { width: 100%; text-align: center; } #viewJP { width: 100%; text-align: center; } </style> </head><body><h5><div id="Text">現地時間</br>Oharu-cho, Ama-gun</br>Aichi Japan</p></div></h5><h5> <div id="timeJP"> </div></h5> <h4> <div id="clockJP"> </div></h4> <h4> <div id="viewJP"> </div></h4></body></html>-
  
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- HTML 5 tag vs Flash video. What are the pros and cons?
  Top Answer
  Answered Oct 26, 2010 · 36 votes
  There are many good points here, and like a Martial Arts fighting style, each point has its thrust, and each can be defended; but each can be defeated with the proper moves.
  Anyone standing on arguments about "propietary" plugins will fall quickly. Microsoft, Apple, and Adobe all bear the guilt, but that's just BUSINESS. You won't change business overnight, and each layer of complexity added by a new tag such as <video> which supports a very technical interface will result in * slightly * different implementations by each browser.
  HTML 5 works now, and so does Flash. How it is implemented, the skill it requires- this defines each resource, whether it's an employee's performance, a webmaster's power, or a domain's influence.
  Although I'm only 40, I began programming when orange or green monochrome monitors were the color choice, and hardware installation came with prayer books instead of instruction manuals. Maybe you could figure out AT commands for the modem when it wouldn't configure with your hardware, and 64K RAM was like, WOWWWWW!
  HTML 5/Flash is a minor nuisance compared to that crap. Let's all learn how to collaborate in community toward a better resource. There is an Open Source Flash Project, it will have bugs. So will HTML 5...
  Every argument here is true, but not necessarily productive. Use that energy toward a solution.
  Other Answers
  Answered Jul 07, 2009 · 113 votes
  Imagine if there was no img tag. If you want images, you have to use a 3rd party plugin, that is really slow and has no standard way to embed it in a page. You can't easily copy images in this way, and search engines basically have no clue what if it's an image or a game or anything.
  Without this, no images were available.
  Then imagine that a browser was released that just let you use this fancy new img tag.
  The video (and audio) tag are a logical sensible way for things to work. We shouldn't need a third party plugin to use a completely standard media format.
  Other Answers
  Answered Mar 01, 2011 · 49 votes
  The biggest benefit of <video>? It's easy. Crazy easy. Ridiculously easy. Your-grandma-can-code-a-video-tag easy. <video src="myfile.ogv"></video> and you're done.
  <video> also has clear benefits for your users. They get a browser-native video player, which can potentially be very efficient. They get a consistent UI that won't change from site to site. Mobile browsers that may not implement flash can still implement <video>.
  The only con is a temporary one, and that is compatibility. IE8 doesn't support <video>, and it will be some time before IE9 is widely installed. As well, there's some fight over which codecs to support for the videos - Firefox, Chrome, and Opera all support both Ogg Theora and WebM, while Safari and IE are shipping H.264 (though either can support Theora/WebM with proper codecs). For now, this just means that you have to post your video in two formats and provide them both with the source element, i.e.:
  -<video> <source src='video.webm' type='video/webm'> <source src='video.mp4' type='video/mp4; codecs="avc1.42E01E, mp4a.40.2"'></video>-
  
  To add support for IE 8 and earlier, and other downlevel clients (like older versions of FF/Safari/Opera/etc), just put your standard video embed code inside the <video> tag, below the <source> elements. If the browser supports <video>, it'll ignore the embed. If it doesn't, it'll ignore the <video> and run the embed instead.
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  4/5
- HTML files are viewed in the browser instead of the Eclipse editor
  Top Answer
  Answered Aug 30, 2020 · 2 votes
  If you want only to open the file with the Eclipse editor a single time, then right-click the file, and select Open with with the correct editor.
  However, if you want to define file associations for Eclipse on a global level, open Preferences, select General/Editors/File associations tab, and assign the corresponding editor the extension (or reorder the already assigned editors).
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  5/5
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html.spec.whatwg.org › multipage › introductionHTML Standard

html.spec.whatwg.org › multipage › introduction
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4 days ago · HTML is the World Wide Web's core markup language. Originally, HTML was primarily designed as a language for semantically describing scientific documents. Its general design, however, has enabled it to be adapted, over the subsequent years, to describe a number of other types of documents and even applications.
www.globaltechcouncil.org › blogs › what-is-htmlWhat is HTML? - Global Tech Council

www.globaltechcouncil.org › blogs › what-is-html
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15 hours ago · HTML stands for HyperText Markup Language. It is the basic code used to create and structure web pages. HTML uses tags to define different elements such as headings, paragraphs, links, and images. When you visit a website, everything you see is structured using HTML.
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4 days ago · Below is the complete explanation of each of the tags used in the above piece of HTML code: DOCTYPE Declaration (<!DOCTYPE html>): Specifies the HTML version; typically, it indicates HTML5. <html>: Root element encompassing the entire HTML document structure. Parent to <head> and <body> tags.
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3 days ago · For a long time, people have been using HTML to build the visible parts of websites, even before other web development languages were around. With HTML, you have special tags to add things like tables, images, and links to your webpage. And now, with the newest version called HTML5, things have gotten even better.
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4 days ago · 1. Pick an HTML Code Editor. 2. Plan the Site Layout. 3. Write the HTML Code. 4. Create Elements in the Layout. 5. Add the HTML Content. 6. Include Layout CSS. 7. Customize Your Site. 8. Choose a Hosting Platform and Publish. Tips on Optimizing an HTML Website. Do I Need to Learn HTML to Build a Website? Making a Website With HTML FAQ.
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html.spec.whatwg.org › dev › syntax
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4 days ago · 13.1 Writing HTML documents. Documents must consist of the following parts, in the given order: Optionally, a single U+FEFF BYTE ORDER MARK (BOM) character. Any number of comments and ASCII whitespace. A DOCTYPE . Any number of comments and ASCII whitespace. The document element, in the form of an html element.

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