What are the tags not supported in html5
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Tags not supported in html5 are: acronym, applet, basefont, big, center, dir, font, frame, frameset, isindex, noframes, s, strike, tt, u, xmp.
The operating environment of this tutorial: windows7 system, HTML5 version, Dell G3 computer.
Unsupported tags in html5
Tag description is not supported in HTML 5. Define the acronym. Not supported in HTML 5. Define applet. Not supported in HTML 5. Please use CSS instead. Not supported in HTML 5. Define large text. Not supported in HTML 5. Defines the text that is centered. Not supported in HTML 5. Define a list of directories. Not supported in HTML 5. Not supported in HTML 5. Define a child window (frame). Not supported in HTML 5. Defines the set of frames. Not supported in HTML 5. Define the input field for a single line. Not supported in HTML 5. Define the noframe section. Not supported in HTML 5. Defines the text with delete lines. Not supported in HTML 5. Defines the text with delete lines. Not supported in HTML 5. Define typewriter text. Not supported in HTML 5. Define underlined text. Not supported in HTML 5. Define preformatted text.
Among them, some tags can be replaced by other tags
Abbr replaces acronym (used for abbreviations)
Object replaced applet.
Ul replaced dir.
Extended knowledge: unsupported attributes
Many expressive attributes have also been removed by the new specification, as follows:
Align
Link, vlink, alink, text attributes on the body tag
Bgcolor
Height and width
The scrolling attribute on the iframe element
Valign
Hspace and vspace
Cellpadding, cellspacing, and border attributes on the table tag
The profile attribute on the header tag
The target attribute on link label a
Longdesc attribute of img and iframe elements
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