<IMG> tag inserts an image file into the HTML document. The following attributes are required in <IMG...> : src and alt.

black box
figure above shows an image file (blckbox.gif) loaded using <IMG> tag with src attribute.

 


<HTML>
  <BODY>
    <IMG SRC="blckbox.gif" ALT="black box"/>
  </BODY>
</HTML>

<IMG> Required Attributes :
alt <IMG ALT = image_description.....> specifies a text description for the image. Is important to show user the text description of the image when the image does not load in a page.
image_description = a string which consist of text to describe the image file.
src <IMG SRC = image_file_location.....> specifies the image file path or URL.
image_file_location = a string to specify image file location to be loaded in the HTML document.

<IMG> Optional Attributes :
align <IMG ALIGN = "top".....> or
<IMG ALIGN = "bottom".....> or
<IMG ALIGN = "middle".....> or
<IMG ALIGN = "left".....> or
<IMG ALIGN = "right".....>		 specifies the alignment (top, bottom, middle, left, or right) for the image.
border <IMG BORDER = border_value.....> specifies the border around the image.
border_value = integer value to define the size of border and 0 for borderless image.
height <IMG HEIGHT = pixels..... >

specifies the height of the image in pixels.

hspace <IMG HSPACE = pixels.....> specifies the horizontal space to the left and right of the image. Set the HSPACE attribute value in pixels.
ismap <A HREF= map_file_location >
<IMG SRC="image.gif" ISMAP></A> 		ISMAP specifies an image as image map in which certain regions in the image are mapped to other documents .
longdesc <IMG LONGDESC = URL......> used to refer to another document that contain a long description of the image.
usemap <IMG USEMAP = image_file_location> specifies the color of active hyperlink text.
vspace <IMG VSPACE = pixels......> specifies the vertical space above and below the image. Set the VSPACE attribute value in pixels..
width <IMG WIDTH = pixels.....>

specifies the width of the image in pixels.


Other Attributes :
Core Attributes class, id, style, title.
Internationalization Attributes lang, dir.
Event Attributes onclick, ondblclick, onmousedown, onmouseup, onmouseover, onmousemove, onmouseout, onkeypress, onkeydown, onkeyup

  Below describe the attributes for <IMG> tag in detail.

Core Attributes

Attribute Syntax Description
CLASS

eg. an element's class :
<ELEMENT CLASS = stClass...>

eg. multiple classes in an element :
<ELEMENT CLASS = stClass [ stClass2 [ stClass3 ... ] ] ... >

 

An element can belong to multiple classes.
Multiple elements can share the same class.

Common Usage : to associate a particular style rule in a style sheet with the element.

stClass = a string of class attribute value

Attribute value for CLASS is space-separated list of class names. Begin with a letter range from A-Z or a-z and may be followed by letters (A-Za-z), digits (0-9), hyphens ("-"), underscores ("_"), colons (":"), and periods ("."). The value is case-sensitive.
ID <ELEMENT ID = stID... >

A unique id for an element.

Common Usage : as a target for links or for naming particular elements in a style sheet.

stID = a string which specifies attribute value for ID

Attribute value for ID begin with a letter range from A-Z or a-z and may be followed by letters (A-Za-z), digits (0-9), hyphens ("-"), underscores ("_"), colons (":"), and periods ("."). The value is case-sensitive.
STYLE <ELEMENT STYLE = stStyle ... >

Specify an inline style for the element.

Common Usage : to associate a particular style sheet rule for the element.

stStyle = a string to specifies the inline style type.

Attribute value for STYLE is the type of the style sheet language or style rules.
Eg. <ELEMENT STYLE="font-family: Verdana">text...</ELEMENT>.
TITLE <ELEMENT TITLE = stTitle... >

Specify the title for the element.

Common Usage : as a tooltip to retrieve advisory information when user hover the mouse over the object.

stTitle = a string that specifies the title attribute value.

Attribute value for TITLE is space/non space-separated list of text.

Internationalization Attributes

Attribute Syntax Description
DIR <ELEMENT DIR = stDir... >

Sets the text direction

stDir = attribute value for DIR

Attribute value for DIR is the directionality of text from left-to-right (DIR=ltr, the default) or right-to-left (DIR=rtl).

LANG <ELEMENT LANG = stLang... >

Sets the language code

stLang = attribute value for LANG

Attribute value for LANG is non space-separated, case-insensitive with the following values : (LANG=en) for English, (LANG=ja) for Japanese and etc.

Event Attributes

Attribute Description
onClick the mouse button is clicked on an element.
onDblClick the mouse button is double-clicked on an element.
onMousedown the mouse button is pressed over an element.
onMouseup the mouse button is released over an element.
onMouseover the mouse is moved onto an element.
onMousemove the mouse is moved while over an element.
onMouseout the mouse is moved away from an element.
onKeypress a key is pressed and released over an element.
onKeydown a key is pressed down over an element.
onKeyup a key is released over an element.