This contains information about the document, rather than stuff that is part of the content itself. This part of an HTML document contains the actual content. These tags define the areas we will call the HEAD block and the BODY of the HTML document. Many authors put routines for scripted mechanisms in the HTML document in the HEAD block to ensure things are loaded and ready when calls to the scripts are made in the body of the document. This is where the content goes.
Paragraphs are a fundemental unit in any written document.
The default rendering of a paragraph break is a skipped line. The anchor tag pair is used for two things. This allows a hyperlink to connect to a point part way through an HTML document. By way of example, click here to jump back to the section on HTML structure. Anchors used in this fashion typically will render as the underlined links you see in a larger number of WWW pages on the internet.