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html5 deleted tags: basefont, big, center, font, s, strike, tt, u, frame, noframes, frameset, bgsound, blink, marquee, applet, isindex, listing, etc.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
html5 Delete (abandoned) tags
Tags that can be replaced by css
Delete For purely expressive elements such as basefont, big, center, font, s, strike, tt, and u, HTML5 advocates putting the screen display functions in CSS for unified editing. .
html5 no longer uses frame
Frame, noframes and frameset are no longer used. These tags have a negative impact on usability. HTML5 does not support frame frames, but only supports iframe frames, or use a server-side format composed of multiple pages that conforms to the page, and delete the above three tags.
Only tags supported by some browsers
bgsound background music, blink text flashing, marquee text scrolling, applet
Others are not commonly used Tag
ul replaces dir
pre replaces listing
code replaces xmp
ruby replaces rb
abbr replaces acronym
Abolish isindex and use form combined with input alternative way.
Abolish listing and use pre instead
Abolish nextid and use guids
Abolish plaintex and use "text /plian" (unformatted text) MIME type alternative.
Supplement: Redefined html tag
: represents inline text, usually bold, not passed to indicate important the meaning of.
: Represents inline text, usually in italics, and does not convey important meaning.