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HTML 5 introduces a whole set of new elements that make it much easier to structure pages. Most HTML 4 pages include a variety of common structures, such as headers, footers and columns and today, it is fairly common to mark them up using div elements, giving each a descriptive id or class.
Diagram illustrates a typical two-column layout marked up using divs with id and class attributes. It contains a header, footer, and horizontal navigation bar below the header. The main content contains an article and sidebar on the right.
The use of
divelements is largely because current versions of HTML 4 lack the necessary semantics for describing these parts more specifically. HTML 5 addresses this issue by introducing new elements for representing each of these different sections. -
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laugharne.me ...HTML 5 introduces a whole set of new elements that make it much easier to structure pages. Most HTML 4 pages include a variety of common structures, such as headers, footers and columns and today, it is fairly common to mark them up using div elements, giving each a descriptive id or class.
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HTML 5 provides the
sourceelement for specifying alternative video and audio files which the browser may choose from based on its media type or codec support. Themediaattribute can be used to specify a media query for selection based on the device limitations and the type attribute for specifying the media type and codecs. Note that when using thesourceelements, thesrcattribute needs to be omitted from their parentvideooraudioelement or the alternatives given by thesourceelements will be ignored. -
Browsers use the MIME type to distinguish between the two. Any document served as
text/htmlmust conform to the requirements for the HTML serialisation and any document served with an XML MIME type such asapplication/xhtml+xmlmust conform to the requirements for the XML serialisation. -
- Backwards compatible with existing browsers
- Authors are already familiar with the syntax
- The lenient and forgiving syntax means there will be no user-hostile “Yellow Screen of Death” if a mistake accidentally slips through
- Convenient shorthand syntax, e.g. authors can omit some tags and attribute values
Benefits of Using HTML
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vdparikh<nav>
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thedevshow 5by5The web is constantly evolving. New and innovative websites are being created every day, pushing the boundaries of HTML in every direction. HTML 4 has been around for nearly a decade now, and publishers seeking new techniques to provide enhanced functionality are being held back by the constraints of the language and browsers.
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ladios soppThe web is constantly evolving. New and innovative websites are being created every day, pushing the boundaries of HTML in every direction. HTML 4 has been around for nearly a decade now, and publishers seeking new techniques to provide enhanced functionality are being held back by the constraints of the language and browsers.
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Simone Economo"With the introduction of a range of enhancements to form controls, APIs, multimedia, structure and semantics, HTML 5 promises to give authors more flexibility and greater interoperability."
html5 webdesign webdev webstandards html future preview markup semantics
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- Backwards compatible with existing browsers
- Authors are already familiar with the syntax
- The lenient and forgiving syntax means there will be no user-hostile “Yellow Screen of Death” if a mistake accidentally slips through
- Convenient shorthand syntax, e.g. authors can omit some tags and attribute values
- Strict XML syntax encourages authors to write well-formed markup, which some authors may find easier to maintain
- Integrates directly with other XML vocabularies, such as SVG and MathML
- Allows the use of XML Processing, which some authors use as part of their editing and/or publishing processes
Benefits of Using HTML
Benefits of Using XHTML
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George Brett"To give authors more flexibility and interoperability, and enable more interactive and exciting websites and applications, HTML 5 introduces and enhances a wide range of features including form controls, APIs, multimedia, structure, and semantics." -- fr
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