The tags are: 1. br, used to define line breaks; 2. hr, used to define horizontal lines; 3. area, used to define the area inside the image map; 4. base, used to define the area on the page All links specify the default address or default target; 5. img, used to define images; 6. input, used to define input boxes; 7. link, used to define the relationship between documents and external resources; 8. param, used to define The parameters of the object.

The operating environment of this tutorial: Windows 7 system, HTML5 version, Dell G3 computer.

In HTML5, tags with terminators are not allowed, which are tags that are presented alone without a closing tag; they are often called single tags or empty tags.

• Because they are HTML tag elements without content, they are elements that are closed in the start tag, and there is no pairing.

Tags that generally appear in pairs have their content in the middle of the two tags. If the label is presented separately, the value is assigned in the label attribute. Such as

title

html5 does not allow writing end tags (empty tags)

• 
  : Define newlines

• ---

  : Define the horizontal line

• : Define the area inside the image map (image map refers to an image with a clickable area) .

• : Specifies the default address or default target for all links on the page.

• : Define the image

• : Define the input box

• : Defines the relationship between the document and external resources, often used for linking style sheets

• : Provides metadata for HTML documents

• : Define the parameters of the object

• : Define the attribute values of one or more columns in the table.

• : Define the column group in the table for formatting.

• : Define the command button.
  

• : Defines the window or frame of the frameset

• : Defines external interactive content or plug-ins .

• : Define the generated key.

• : Define the media source.

Elements that can omit the end tag are:

li, dt, dd, p, rt, rp, optgroup, option, colgroup, thead,

tbody, tfoot, tr, td, th

The elements that can omit all tags are:

html, head, body, colgroup , tbody

(Learning video sharing:web front-end)

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