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What elements have been removed from the new features of html5

青灯夜游
青灯夜游Original
2022-01-17 10:58:493810browse

elements removed in the new features of html5: basefont, big, center, font, s, strike, tt, u, frame, frameset, noframes, acronym, applet, etc.

What elements have been removed from the new features of html5

The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.

What are the new features of html5 and which elements have been removed?

  • HTML5 is no longer a subset of SGML, it is mainly about images, location, storage, multi-tasking and other functions Added

    • paintingcanvas
    • video and audio elements for media playback
    • Local offline storagelocalStorage Long-term storage of data, the data will not be lost after the browser is closed
    • sessionStorage data will be automatically deleted after the browser is closed
    • Content elements with better semantics, such as article, footer, header, nav, section
    • Form controls, calendar, date, time, email, url, search
    • New Technologywebworker, websocket, Geolocation
  • Removed elements:

    • Purely expressive elements: basefont, big, center, font, s, strike, tt, u
    • Elements that negatively impact usability: frame, frameset, noframes

    • Confuses: acronym, applet , dir

    ##Define an acronym, please use the tag to replace it

    ## The # tag is used to define an embedded applet, please use instead.

    The tag is used to set the default font size of the document

    Labels make larger text.

    The tag horizontally centers the text it surrounds

    Tag definition directory list

    Specifies the size and font of the text and color

    tag defines child window (frame)

    tag defines frameset

    for browsers that do not support frames Display text</p> <p><strike> tag defines strikethrough text, please use <del> tag instead</p> <p><tt>Tag defines typewriter text</p> <p>< s>Tag defines strikethrough text</p> <p><u>Tag defines underlined text</p> <p></p> </blockquote>##Support</li>HTML5<li>New tag:<p><code></code></p>IE8/IE7/IE6<ul>Support tags generated through the <li>document.createElement<code> method</code><code>You can use this feature to allow these browsers to support </code>Hold HTML5</li>New tag<li><code>After the browser supports new tags, you still need to add the default style of the tag</code></li> <li> </ul>Related recommendations:《</li>html video tutorial</ul>》<p></p><p>The above is the detailed content of What elements have been removed from the new features of html5. 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