Doctype html w3schools

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The doctype declaration is not an HTML tag; it is an instruction to the web browser about what version of the markup language the page is written in. The DTD specifies the rules for the markup language, so that the browsers can render the content correctly. Framesets are not allowed. The markup must also be written as well-formed XML. Ektron CMS NET Version 7. W3Schools is for training only.

Doctype html w3schools

The list is informative and does not try to be exhaustive there are many other proper declarations you could use , but it has most of the declarations commonly used on the Web at the moment. This makes sure the document will be parsed the same way by different browsers. The simplest and most reliable doctype declaration to use is the one defined in HTML5 :. If you need a doctype matching a specific version of X HTML, the doctype declaration must be exact both in spelling and in case to have the desired effect, which makes it sometimes difficult. To ease the work, below is a list of recommended doctype declarations that you can use in your Web documents. Use the following markup as a template to create a new HTML document using a proper Doctype declaration. See the list below if you wish to use another DTD. This means that in many XML languages, doctype declarations are not necessarily useful. The list below is provided only if you actually need to declare a doctype for these types of documents. The doctype declarations below are valid, but have mostly an historical value — a doctype declaration of a more recent equivalent ought to be used in their stead. W3C liability , trademark , document use and software licensing rules apply.

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This ensures that the web page is parsed the same way by different web browsers. In HTML 4. Because HTML 4. Additionally, doctypes for HTML 4. See the examples below for a comparison between HTML 4. During the formative years of HTML, web standards were not agreed upon yet. Browser vendors would build new features in whatever way they wanted. There was little concern for competing browsers. The result was that web developers had to choose a browser to develop their sites for. This meant that sites would not render well in unsupported browsers.

Doctype html w3schools

W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. Create your own website with W3Schools Spaces - no setup required. Host your own website, and share it to the world with W3Schools Spaces. Build fast and responsive sites using our free W3.

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My W3Schools Tutorials. An HTML element is a start tag and an end tag with content in between:. Upgrade Become a PRO user and unlock powerful features ad-free, hosting, videos,.. Data Analytics Data Analytics Course. Host your own website, and share it to the world with W3Schools Spaces. Copyright by Refsnes Data. While using this site, you agree to have read and accepted our terms of use and privacy policy. Help the lynx collect pine cones. Browser Statistics Read long term trends of browser usage. W3schools Pathfinder.

W3Schools offers a wide range of services and products for beginners and professionals, helping millions of people everyday to learn and master new skills. Create your own website with W3Schools Spaces - no setup required.

Copyright by Refsnes Data. Build fast and responsive sites using our free W3. Where To Start Not sure where you want to start? Users need to quickly and intuitively find and add information. The link's destination is specified in the href attribute. Where To Start Not sure where you want to start? W3Schools is optimized for learning and training. Programs Full Access Best Value! If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:. The link's destination is specified in the href attribute. This means that in many XML languages, doctype declarations are not necessarily useful. Streamline content and document management. This will open a new tab containing the HTML source code of the page. What is a Quiz?