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HTML5 (about element (types of element (normal element (self-close…

- - - - self-close element
      - begin-end elment
  - - - normal attribute
      - user-defined attribute: begin weith data-
      - bool attribute: disabled disabled="" disabled="disabled"
    - - class
      - id
      - lang spellcheck accesskey hidden contenteditable draggable dropzone
      - style
      - title
- - - - applicaition name | description | generator | keywords | robots(noindex, nofollow, noarchive) | charset
      - http-equiv: rewrite http header (refresh, default-style, content-type)
    - - <style media="screen AND (max-width:500px)"></style>
    - - <link ref="stylesheet" type="text/css" href="style.css"/>
      - <link rel="shortcut icon" href="favicon.ico" type="image/x-icon" />
      - <link rel="prefetch" href="/page.html" />