Basic
<html></html> Creates an HTML document

<head></head> Sets the title and other information that isn't displayed on the Web page itself

<body></body> Sets off the visible portion of the document

Header
<title></title> Puts the name of the document in the title bar

Body
<body bgcolor=?> Sets the background color, using name or hex value

<body text=?> Sets the text color, using name or hex value

<body link=?> Sets the color of links, using name or hex value

<body vlink=?> Sets the color of followed links, using name or hex value <body alink=?> Sets the color of links on click

Text
<pre></pre> Creates preformatted text

<h1></h1> Creates the largest headline

<h6></h6> Creates the smallest headline

<b></b> Creates bold text

<i></i> Creates italic text

<tt></tt> Creates teletype, or typewriter-style text

<cite></cite> Creates a citation, usually italic

<em></em> Emphasizes a word (with italic or bold)

<strong></strong> Emphasizes a word (with italic or bold)

<font size=?></font> Sets size of font, from 1 to 7

<font color=?></font> Sets font color, using name or hex value

Links
<a href="URL"></a> Creates a hyperlink

<a href="mailto:EMAIL"></a> Creates a mailto link

<a name="NAME"></a> Creates a target location within a document

<a href="#NAME"></a> Links to that target location from elsewhere in the document

Formatting
<p> Creates a new paragraph

<p align=?> Aligns a paragraph to the left, right, or center

<br> Inserts a line break

<blockquote></blockquote> Indents text from both sides

<dl></dl> Creates a definition list

<dt> Precedes each definition term

<dd> Precedes each definition

<ol></ol> Creates a numbered list

<li> Precedes each list item and adds a number

<ul></ul> Creates a bulleted list

<li> Precedes each list item and adds the bullet

<div align=?> A generic tag used to format large blocks of HTML; also used for stylesheets

Graphics
<img src="name"> Adds an image

<img src="name" align=?> Aligns an image: left, right, center, bottom, top, middle

<img src="name" border=?> Sets size of border around an image

<hr> Inserts a horizontal rule

<hr size=?> Sets size (height) of rule

<hr width=?> Sets width of rule in percentage or absolute value

<hr noshade> Creates a rule without a shadow

Tables
<table></table> Creates a table

<tr></tr> Sets off each row in a table

<td></td> Sets off each cell in a row

<th></th> Sets off the table header (a normal cell with bold, centered text)

<table border=#> Sets width of border around table cells

<table cellspacing=#> Sets amount of space between table cells

<table cellpadding=#> Sets amount of space between a cell's border and its contents

<table width=# or %> Sets width of table in pixels or as a percentage of document width

<tr align=?> or <td align=?> Sets alignment for cell(s) (left, center, or right)

<tr valign=?> or <td valign Sets vertical alignment for cell(s) (top, middle, or bottom)

<td colspan=#> Sets number of columns a cell should span (default=1)

<td rowspan=#> Sets number of rows a cell should span (default=1)

<td nowrap> Prevents the lines within a cell from being broken to fit

Frames
<frameset></frameset> Precedes the tag in a frames document; can also be nested in other framesets

<frameset rows="value,value"> Defines the rows within a frameset, using number in pixels or percentage of width

<frameset cols="value,value"> Defines the columns within a frameset, using number in pixels or percentage of width

<frame> Defines a single frame within a frameset

<noframes></noframes> Defines what will appear on browsers that don't support frames

<frame src="URL"> Specifies which HTML document should be displayed

<frame name="name"> Names the frame so it may be targeted by other frames

<frame marginwidth=#> Defines the left and right margins for the frame; must be equal to or greater than 1

<frame marginheight=#> Defines the top and bottom margins for the frame; must be equal to or greater than 1

<frame scrolling=VALUE> Sets whether the frame has a scroll bar; value may equal "yes," "no," or "auto." (The default, as in ordinary documents, is auto.)

<frame noresize> Prevents the user from resizing a frame

Forms
For functional forms, you'll have to run a CGI script. The HTML just creates the appearance of a form.

<form></form> Creates all forms

<select multiple name="NAME" size=?></select> Creates a scrolling menu. Size sets the number of menu items visible before you need to scroll.

<option> Sets off each menu item

<select name="NAME"></select> Creates a pulldown menu

<textarea name="NAME" cols=40 rows=8></textarea> Creates a text box area - columns set the width; rows set the height.

<input type="checkbox" name="NAME"> Creates a checkbox - text follows tag. <input type="radio" name="NAME" value="x"> Creates a radio button - text follows tag

<input type=text name="foo" size=20> Creates a one-line text area - size sets length in characters.

<input type="submit" value="NAME"> Creates a Submit button

<input type="image" border=0 name="NAME" src="name.gif"> Creates a Submit button using an image

<input type="reset"> Creates a Reset button