A tag attribute

The a tag appears in pairs, starting with <A>, </a>.
Attribute.
Common -- General Attributes
Accesskey -- represents the access method of a link's shortcut key
Charset -- specifies the encoding method used by the page to which the link is linked, such as the UTF-8
Coords-this attribute can be used to define the linked area when using an image map, usually using X and Y coordinates.
Href -- represents a link source (that is, the link location)
Hreflang-indicates the language code used to link to the page
Rel indicates the relationship between the document and the linked content (content referred to by href ).
Rev -- Relationship between the document and the linked content (content referred to by href)
Shape -- when using an image map, you can use shape to specify the link area.
Tabindex -- indicates the order in which links are traversed using the "tab" key.
Target -- indicates which window or framework should be opened by this link.
Title -- Additional prompt information of the link
Type -- indicates the MIME type of the link.