- published: 14 Mar 2015
- views: 25673
A document type declaration, or DOCTYPE, is an instruction that associates a particular SGML or XML document (for example, a webpage) with a document type definition (DTD) (for example, the formal definition of a particular version of HTML). In the serialized form of the document, it manifests as a short string of markup that conforms to a particular syntax.
The HTML layout engines in modern web browsers perform DOCTYPE "sniffing" or "switching", wherein the DOCTYPE in a document served as text/html
determines a layout mode, such as "quirks mode" or "standards mode". The text/html
serialization of HTML5, which is not SGML-based, uses the DOCTYPE only for mode selection. Since web browsers are implemented with special-purpose HTML parsers, rather than general-purpose DTD-based parsers, they don't use DTDs and will never access them even if a URL is provided. The DOCTYPE is retained in HTML5 as a "mostly useless, but required" header only to trigger "standards mode" in common browsers.
HyperText Markup Language, commonly referred to as HTML, is the standard markup language used to create web pages. Along with CSS, and JavaScript, HTML is a cornerstone technology, used by most websites to create visually engaging web pages, user interfaces for web applications, and user interfaces for many mobile applications.Web browsers can read HTML files and render them into visible or audible web pages. HTML describes the structure of a website semantically along with cues for presentation, making it a markup language, rather than a programming language.
HTML elements form the building blocks of all websites. HTML allows images and objects to be embedded and can be used to create interactive forms. It provides a means to create structured documents by denoting structural semantics for text such as headings, paragraphs, lists, links, quotes and other items.
The language is written in the form of HTML elements consisting of tags enclosed in angle brackets (like <html>
). Browsers do not display the HTML tags and scripts, but use them to interpret the content of the page.
HTML5 is a markup language used for structuring and presenting content on the World Wide Web. It was finalized, and published, on 28 October 2014 by the World Wide Web Consortium (W3C). This is the fifth revision of the HTML standard since the inception of the World Wide Web. The previous version, HTML 4, was standardized in 1997.
Its core aims are to improve the language with support for the latest multimedia while keeping it easily readable by humans and consistently understood by computers and devices (web browsers, parsers, etc.). HTML5 is intended to subsume not only HTML 4, but also XHTML 1 and DOM Level 2 HTML.
Following its immediate predecessors HTML 4.01 and XHTML 1.1, HTML5 is a response to the fact that the HTML and XHTML in common use on the World Wide Web have a mixture of features introduced by various specifications, along with those introduced by software products such as web browsers and those established by common practice. It is also an attempt to define a single markup language that can be written in either HTML or XHTML. It includes detailed processing models to encourage more interoperable implementations; it extends, improves and rationalizes the markup available for documents, and introduces markup and application programming interfaces (APIs) for complex web applications. For the same reasons, HTML5 is also a potential candidate for cross-platform mobile applications. Many features of HTML5 have been designed with low-powered devices such as smartphones and tablets taken in to consideration. In December 2011, research firm Strategy Analytics forecast sales of HTML5 compatible phones would top 1 billion in 2013.
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In this video we go over doctype. Donate to support EJ Media: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted;_button_id=8EY3R3A8NDWB4
Facebook page: https://www.facebook.com/pages/WebTunings/339234242822202 Google+ https://plus.google.com/u/0/b/110715686307038021344/110715686307038021344/posts Recommended JavaScript Book: http://www.amazon.com/gp/product/0596805527/ref=as_li_qf_sp_asin_tl?ie=UTF8&camp;=1789&creative;=9325&creativeASIN;=0596805527&linkCode;=as2&tag;=webtuningscom-20 Code snippets: https://github.com/webtunings
И так ребята, сегодня вы узнаете про стандарты HTML, а именно про doctype. Что это и зачем его надо задавать. И попутно разберем базовую структуру любой HTML-странички. Ну и еще узнаем про теги: HTML, HEAD, BODY, TITLE и как прописывать кодировку. Напоминаю, что мы используем кодировку UTF-8. Именно с ней работает редактор Brackets. Следующее видео я сяду записывать, когда это наберет 30 лайков! С каждым новым видео цена будет расти на 5 :) Да и еще - выходные не в счет, я тоже люблю отдыхать. Ссылки из видео: 1. Страница с Doctype: http://www.w3.org/QA/2002/04/valid-dtd-list 2. Курс по Sublime: https://www.youtube.com/playlist?list=PLPpaecEYRC8ZjBQ1OsGOKmxBF8lTTO4BZ Музыка предоставлена сайтом http://audiomicro.com, как партнеру VSP Group. Спасибо! Наш сайт: http://master-css.com Наш...
A super quick video discussing the DOCTYPE Declaration. This video is the first in a series covering the basics of HTML editing.
La primera etiqueta, y la primera bondad, con esta nueva etiqueta ahorraremos una enorme línea de código al definir el documento usando la sintaxis de HTML5 y no la que teníamos que hacer con xhtml. **Todos los videos del Curso de HTML aquí: http://www.youtube.com/playlist?list=PL652DDE687FC4453C Síguenos en Twitter: http://twitter.com/codigofacilito "Like" en Facebook: http://facebook.com/codigofacilito Suscríbete en YouTube para seguir al tanto con los video tutoriales: http://bit.ly/qHEewR ---- Enlaces del Tutor: Canal: http://www.youtube.com/DxvTuts Twitter: @DxvTweet FanPage: http://www.facebook.com/DxVBook
This tutorial introduces the new HTML5 Doctype, and demonstrates how to use it to create a webpage. Watch more at http://www.lynda.com/HTML-5-tutorials/html5-first-look/67161-2.html?utm_medium=viral&utm;_source=youtube&utm;_campaign=videoupload-67161-0305 This specific tutorial is just a single movie from chapter three of the HTML5 First Look course presented by lynda.com author James Williamson. The complete HTML5 First Look course has a total duration of 4 hours and 28 minutes, provides a high-level overview of HTML5, compares how it differs from HTML4, and how it might evolve in the future HTML5 First Look table of contents: Introduction 1. Introducing HTML5 2. What's New in HTML5 3. Creating HTML5 Documents 4. Structuring HTML5 Documents 5. Building Forms in HTML5 6. HTML5 API Suppo...
Case HTML 2 - What does the Doctype definition mean? The doctype declaration is way of telling the browser about the language it will be rendering and the definition is a way of telling the browser the standard it shall be adhering to . It comprises of 2 lines .The first line is divided into declaration and then the definition often referred to as the public identifier (widely known definition set by the w3c or the worldwide web consortium )..... The second line then marks the system identifier which points the browser to the resource for standard's ......the browser(Internet explorer ,Google chrome ,Mozilla etc ) behaves like a good boy , It goes to the identifier and checks whether the standards are as per definition ,if yes , it renders them as per standard else still renders it (that...
Un pequeño punto que se me ha olvidado mencionar en el primer tutorial... asi que aqui va ;) BLOG DE PROGRAMALOTU: http://programalotu.blogspot.com/ GRUPO DE FACEBOOK: https://www.facebook.com/groups/288394547868119/ Tienda oficial: http://es.qstoms.com/programalotu
Follow this tutorial to learn how to choose Doctype for your HTML document depending upon the specifications you want. Don't forget to check out our site http://howtech.tv/ for more free how-to videos! http://youtube.com/ithowtovids - our feed http://www.facebook.com/howtechtv - join us on facebook https://plus.google.com/103440382717658277879 - our group in Google+ An HTML Document starts with a DTD Declaration. DTD is the acronym for Document Type Definition. It is commonly referred to as Doctype in HTML. It is used by a web browser to determine which rendering mode is being used by the HTML Document. Another purpose, for which the Doctype is used, is that the markup validators have to determine the rules against which they will verify the HTML document. The most commonly used Doctype...
(lee brilleaux/gypie mayo)
Take a little tip from mr. johnny green
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Take your dinner from a new nose back
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Ride your nag till your sore
Push yourself just a little bit more
Gotta to go faster
Gotta get along
Gotta to go faster
Grit your teeth, clench your jaws
Push yourself just a little bit more
Take a little tip from mr. johnny green
Keep your rear view mirror clean
Keep an eye on the road and the one behind