1.1 General tags ...
General tags are composed of an opening tag (Opening Tag) and an ending tag (Ending Tag). The syntax is:
Where, x represents the tag name.
Some attributes can also be attached to the tag to achieve certain special effects or functions. For example:
Where, a1,a2,...,an is the attribute name, and v1, v2,...,vn are the corresponding attribute values. The attribute values are acceptable in all browsers currently used, with or without quotation marks. However, according to the new W3C standard, the attribute value is Quotation marks are required, so it is best to develop the habit of adding quotation marks.
1.2 Empty tags
Although most tags appear in pairs, some exist alone. These tags that exist alone are called Empty Tags. Its AND method is:
Similarly, empty tags can also be attached with some attributes (Attribute) to complete certain special effects or functions. For example:
,
, etc.
The new standard (XHTML1.0/HTML4.0) defined by W3C recommends that empty tags should end with /, that is:
If additional attributes are:
The browsers currently used do not have strict requirements on whether to add / after the empty tag, that is, at the end of the empty tag, / and Not adding / will not affect its function. But if you want your files to meet the latest standards, it's best to add /.
2. HTML tag classification
2.1 Document Structure Tags (Document Structure Tags)
The purpose of such tags is to mark out the file Structure, the main ones are:
...: Marks the start and end of the html file.
...
: Marks the file title area.
...: Marks the main body area of the file
2.2 Block Formatting Tags (Block Formatting Tags)
The main purpose of such tags is Display a certain section of text in an HTML file in a specific format to increase the visibility of the file. The main ones are:
...:i=1,2,...,6, webpage title.
: Generate horizontal lines.
: Forced line break.
...
: Display in original format.
...: Mark the contact person’s name, phone number, address and other information.
...
: Section quotation mark.
2.3 Character Formatting Tags (Character Formatting Tags)
It is used to change the appearance of HTML file text and increase the beauty of the file. The main ones are:
...: Bold text.
...: Italics.
...: Type font.
...: Change font settings.
: The text blinks.
...: Increase the font size.
...: Reduce the font size.
...: Reference.
2.4 List Tags
...
: Unnumbered list.
...
...
: list of definitions.
: menu list.
2.5 Link Tag (Anchor Tag)
Links can be said to be the lifeblood of HTML hypertext files. HTML uses link tags to integrate images, text, video, audio and other information scattered around the world. The main purpose of such tags is to mark hypertext links (Hypertext Link), mainly including:
...: Establish a hyperlink.
2.6 Multimedia Tag
This type of tag is used to display image data. Mainly include:
: embedded image.
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