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A Quick Reference Guide to HTML Tags

 
Basic Tags
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<html></html> Creates an HTML document
<head></head> Separates the title and other information that isn't to be displayed on the Web page from the information that is to be displayed
<body></body> Delineates the visible portion of the document
 
Header Tags
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<title></title> Puts the name of the document in the title bar (these tags go between the <head> and </head> tags)
 
Body Attributes
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<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 tags
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<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
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<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
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<p> Creates a new paragraph
<p align=?> Aligns a paragraph to the left, right, or center
<br> Inserts a line break
<blockquote></blockquote> Indents the enclosed 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
 
Graphical Elements
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<img src="name"> Adds an image
<img src="name" align=?> Aligns an image horizontally: left, right, or center
<img src="name" valign=?> Aligns an image vertically: bottom, top, middle
<img src="name" border=?> Sets width 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
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<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 Attributes
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<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
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<frameset></frameset> Precedes the <body> 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 - or region - within a frameset
<noframes></noframes> Defines what will appear on browsers that don't support frames
 
Frames Attributes
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<frame src="URL"> Specifies which HTML document should be displayed
<frame name="name"> Names the frame, or region, 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 scrollbar; 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
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<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
<option> Sets off each menu item
<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

Many tags (such as font size) require that parameters be placed within quotes. Some browsers may be forgiving, others may not. A good practice, when in doubt, is to first try quoting the parameter: If it works, leave it; if it doesn't, then remove the quotes. If you've got the time, and you want to consult the absolute authority, see Netscape's HTML Tag Reference.

For functional forms, you'll have to create/obtain a CGI script to process the data in the form. The HTML just creates an input document. For more info see the NCSA's overview of forms and Speakeasy's "Reading CGI Data".

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