HTML 5 is a new web standard that aims to replace the existing HTML 4.01, XHTML 1.0 and DOM Level 2 HTML standards. It hopes to reduce the browser's need for plug-in-based rich internet applications (RIA), such as Adobe Flash, Microsoft Silverlight, and Sun JavaFX.
HTML 5 provides a number of new elements and attributes that reflect typical modern usage of websites. Some of them are technically similar to
and tags, but have a meaning, such as (site navigation block) and . Such tags will facilitate search engine indexing, small screen devices, and use by the visually impaired. It also provides new functionality for other browsing elements through a standard interface, such as the and tags.
HTML 5, as a new generation of hypertext markup language, adds many tags. These tags are not only more semantic, but also powerful. Specifically, there are the following tags:
defines external content. For example, a new article from an external news provider, or text from a blog, or text from a forum. Or content from other external sources. Define content outside the page content, but should be related to the page content Define sounds, such as music or other audio streams Define graphics, such as charts and Other images. Defines a command button, such as a radio button, checkbox, or button. defines a container for data templates. This element must have child elements that define the template: element defines a list of optional data. datagrid is displayed as a tree list defines a list of optional data. Used in conjunction with the input element, you can create a drop-down list of input values Define dialogue, such as chat Define embedded content, such as plug-ins Define the source of events sent by the server Define the grouping of media content, and their headers Define the footer of a section or document Define a section or document The header Groups the title Defines the generated key Defines the text with mark The main function is to add text to the page Medium highlights text that needs to visually highlight its importance to the user. A typical application is to highlight the search keyword to define the measurement (unit) to the user in the search results. Use only for measures with known maximum and minimum values Define navigation links Define nesting points for child elements in the data template. Use with the and elements to define different types of output, such as the output of a script a running process. Can be used to display the progress of time-consuming functions in JavaScript or the progress of downloads Define rules for updating data templates. Used with and elements Used in ruby comments to define content displayed by browsers that do not support ruby elements Define the pinyin of Chinese characters Or hiragana for Japanese Kanji Defines "explanatory text" in Asian languages Defines a section in a document. such as chapters, headers, footers, or other parts of the document Define media resources for media elements (such as and ) Define a summary, That is, the head of detail. Not equivalent to the summary attribute in the table Defines date or time, or both Defines video, such as a movie clip or other video stream
HTML5 adds a lot New tags, but also abolished some tags:
You can use instead of Use CSS instead of Use CSS instead of Use CSS instead of Use CSS instead of <![CDATA[ is no longer supported <br><s> Replace <br><small> with CSS <tt> Use CSS instead of <br><u> Use CSS instead of <br> The above tags are deprecated in XHTML 1.0, but are still supported, but are not supported at all in HTML 5. In addition, many tag attributes are not supported, such as aling, etc. <br><br>Related articles: </p>
<p><a href="http://www.php.cn/html5-tutorial-35947.html" target="_self">The definition and regulations of each tag in HTML5: header</a></p>
<p><a href="http://www.php.cn/html5-tutorial-6264.html" target="_self">Example introduction to the difference between HTML5 tags and HTML4 tags</a></p>
<p><a href="http://www.php.cn/html5-tutorial-352950.html" target="_self">HTML5 tag collection</a></p>
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