How familiar are you with pure HTML tags?_HTML/Xhtml_Web page production

The following HTML tags basically include all existing tags. Take a few minutes to browse them one by one, and you may gain something:
: The comment tag is used to insert comments in the source document
: Tell the browser which HTML or XHTML specification to use for the document
: Define the anchor and create a link (or hyperlink) to another document by using the href attribute; by using the name or id attribute, Create a bookmark within the document (that is, you can create a link to the document fragment)
: represents an abbreviation, such as "Inc.", "etc.", such as: etc.
: The definition only takes the acronym, such as "NATO". By tagging only acronyms, you can provide useful information to browsers, spell checkers, translation systems, and search engine indexers

: Defines an address (such as an email address). You should use it to define the address, signature, or authorship of the document.
: Defines the embedded applet.
: The tag defines the area in the image map (note: image map refers to an image with a clickable area). area elements are always nested within