1.HTML was created by Tim Berners-Lee and colleague Daniel W. Connolly in 1990.

2. What should HTML start with

<! DOCTYPE html> <html lang = "zh-CN"> <head> <meta name="viewport" content="width=device-width, <meta HTTP-equiv =" x-UA-compatible "content=" IE =edge"> <title></title> </head> <body></body> </ HTML >Copy the code

3. What are the commonly used labels of table chapters and what do they mean

  • H1 to H6 indicate the title
  • Section section
  • Artcle articles
  • The header in the head
  • Footer foot
  • Main Contents
  • Aside C
  • P paragraphs

4. What are the global attributes

  • class
  • contenteditable
  • hidden
  • id
  • style
  • tabindex
  • title

5. What are the commonly used content labels and what do they mean

  • Ol + Li ordered list
  • Ul + LI unordered list
  • Dl +dt+dd Dt is the object dd is the description of DT
  • Pre preserves the Spaces entered in the line
  • Hr line
  • Br a newline
  • A link
  • Em means emphasis in tone
  • Strong Indicates important content
  • Code retains the same width and can be combined with the “pre” tag to output code segments
  • Quote reference
  • Blockquote reference, block-level element