Structure
ELEMENT DESCRIPTION DTD DEPR.
<html> root of HTML document    
<head> information about a document (header)    
<body> document's body    
<div> section in a document (container)    
<span> inline section in a document (container)    
<h1> to <h6> HTML headings from larger to smaller    
<address> contact information on author    
<noscript> alternate content for users that do not support client-side scripts    

Text and font
ELEMENT DESCRIPTION DTD DEPR.
<p> paragraph    
<br /> single line break    
<pre> preformatted text    
<em> emphasized text    
<strong> strong emphasis    
<dfn> instance definition term    
<cite> citation    
<code> computer code fragment    
<samp> sample output from a computer program    
<kbd> keyboard input by user    
<var> instance of variable or argument    
<abbr> abbreviation    
<acronym> acronym    
<blockquote> long quotation    
<q> short inline quotation    
<sub> subscripted text    
<sup> superscripted text    
<ins> inserted text into a document    
<del> deleted text from document    
<tt> teletyped or monospaced text style    
<i> italic text style    
<b> bolded text style    
<big> bigger text    
<small> smaller text    
<hr /> horizontal rule (line)    
<bdo> overrides current text direction    
<center> centered text (~ align) L/T *
<font> local font, color, and size for text L/T *
<strike> strikethrough text L/T *
<s> strikethrough text style L/T *
<u> underlined text style L/T *

List
ELEMENT DESCRIPTION DTD DEPR.
<ul> unordered list    
<ol> ordered list    
<li> list item    
<dl> definition list    
<dt> definition term in a definition list    
<dd> definition description in a definition list    
<dir> directory list L/T *
<menu> menu list L/T *

Table
ELEMENT DESCRIPTION DTD DEPR.
<table> table    
<tr> table's row    
<th> table's header cell    
<td> table's data cell    
<caption> table's caption    
<thead> groups table header's content    
<tbody> groups table body's content    
<tfoot> groups table footer's content    
<colgroup> group of columns in a table    
<col /> attribute values for one or more columns in a table    

Link
ELEMENT DESCRIPTION DTD DEPR.
<a> anchor (hyperlink)    

Media
ELEMENT DESCRIPTION DTD DEPR.
<img /> embedded image    
<object> embedded object    
<param /> parameter for an embedded object    
<area /> client-side image-map area    
<map> client-side image map    
<applet> embedded Java applet L/T *

Frame
ELEMENT DESCRIPTION DTD DEPR.
<frameset> set of frames (window subdivision) F  
<frame /> window (a frame) in a frameset F  
<noframes> alternate content for users that do not support frames F  
<iframe> inline frame (subwindow) L/F  

Form
ELEMENT DESCRIPTION DTD DEPR.
<form> HTML interactive form    
<fieldset> grouped related elements in a form    
<legend> caption for a fieldset    
<input /> input control in a form    
<button> push button    
<select> drop-down list (options selection)    
<optgroup> group of options in a drop-down list    
<option> option (selection) in a drop-down list    
<textarea> multiline text input control in a form (text area)    
<label> labeled text for form's control    
<isindex> single line prompt L/T *

Header
ELEMENT DESCRIPTION DTD DEPR.
<title> document's title    
<meta /> metadata about a HTML document    
<link /> relationship between a document and external resource    
<base /> base URI/target for all URIs in a document    
<style> style information for a document    
<script> client-side script    
<basefont /> default color, size, or font for all the text in a document L/T *