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The difference between HTML5 and HTML4

1. Cancel some outdated HTML4 tags

Including purely display effect tags, such as <font> and <center>, they have been completely replaced by CSS .

Other canceled attributes: acronym, applet, basefont, big, center, dir, font, frame, frameset, isindex, noframes, strike,tt

2. Added some New elements

More intelligent form elements: date, email, url, etc.; More reasonable tags: <section>, <video>, <progress>, <nav>, <meter>, <time>, <aside>, <canvas>, etc.

3. File type declaration

There is only one type, <!DOCTYPE html>


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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>文档标题</title> </head> <body> HTML5 </body> </html>
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