html5 removed elements: acronym, applet, basefont, big, center, dir, font, frame, frameset, noframes, strike, tt, s, u, etc.
The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.
HTML 4.01 elements that were removed in HTML 5 are:
Define acronyms
Please use <abbr></abbr>
tag replaces it
Please use <object></object>
Replace it
<applet code="Bubbles.class" width="350" height="350">
一个嵌入的 Java applet
</applet>
##The tag is used to set the default font size of the document
tag makes larger text.
##
The tag horizontally centers the text it surrounds
Tag definition directory list
##Specifies the size, font and color of the text
##Tag defines sub-window (frame)
##
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