Select a attribute to visit its documentation.
Attribute | IE | Netscape | Mozilla | Opera | Safari |
---|---|---|---|---|---|
Abbreviation for a header cell in a table. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Name of the layer above the element. | no | 4.0 | no | no | no |
Specifies accepted MIME types for file uploads. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Comma or space-delimited list of character encodings that are accepted by the server processing the form. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Hot-key shortcut for the element. | 5.5+ | no | no | no | 1.0+ |
URL for submitting the form. | 2.0 | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Defines the alignment of the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
alink (body)
Specifies the color for active links in the document. Specify either a color name or RGB color. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
Specifies whether the background of the element may be transparent. | 5.5+ | no | no | no | no |
Specifies alternative text to display if the element cannot be displayed as expected. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies whether the content of the element is considered an HTA application. | 5.0+ | no | no | no | no |
URL or list of URLs that need to be preloaded for the element. | 3.0+ | 4.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies whether form autocompletion, which automatically completes the fields on a form after the user has typed enough letters, is on or off. | 5.0+ | no | no | no | 1.0+ |
Specifies a name for a group of headers. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the URL for the background image for the document or element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
balance (bgsound)
Number between -10000 and +10000 that specifies the sound balance for the left and right speakers. | no | no | no | no | no |
Specifies the movement behavior of the element. | 4.0+ | no | no | no | 1.0+ |
Name of the layer below the element. | no | 4.0+ | no | no | no |
Specifies the background color for the document or element. Specify either a color name or RGB color. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
bgproperties (body)
If set, specifies that the background image is fixed and will not scroll. | 4.0+ | no | no | no | 1.0+ |
Width (in pixels) of the border around the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the color of the border of the element. Specify either a color name or RGB color code. | 4.0+ | no | no | no | no |
Specifies the darker color of the border of the element, if the element has a 3D effect. Specify either a color name or RGB color code. | 4.0+ | no | no | no | no |
Specifies the lighter color of the border of the element, if the element has a 3D effect. Specify either a color name or RGB color code. | 4.0+ | no | no | no | no |
bottommargin (body)
Bottom margin for the body of the document. | 4.0+ | no | no | no | no |
Number of pixels between the content of a cell and the edge of a cell. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Number of pixels between cells. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Specifies which character to use to set the alignment for the element. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
Number of characters to offset the other column characters from the character specified by char. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
Specifies the character set associated with the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
If present, specifies that the element should be checked. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
URL for the source of the quote. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
CSS class assigned to the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
clear (br)
Specifies how the text flows with regards to any surrounding elements. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
Specifies x,y coordinates of the upper left and lower right corners of the element. | no | 4.0+ | no | no | no |
URL of the Java class file for the element. | 2.0+ | 2.0+ | 1.0+ | no | 1.0+ |
URL for the code base for the element. | 2.0+ | 2.0+ | 1.0+ | no | 1.0+ |
Name of the color or RGB code for the color for the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Number of characters wide that the element should be. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Number of columns that the element should span. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
If true, specifies that the element should be visually compressed by compacting whitespace between its child elements. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
High-level meta description of the contents of the document. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Specifies whether or not the content of the element is editable, or if the element inherits the value of this property from its parent. | 4.0+ | no | no | no | 1.0+ |
Comma-delimited x, y coordinates for the element. | 4.0+ | 1.1+ | 1.0+ | 7.0+ | 1.0+ |
data (comment)
Specifies a reference URL for the comment. | 4.0+ | no | no | no | no |
Specifies the URL for data used by the element. | 4.0+ | 4.0+ | 1.0+ | 7.0+ | 1.0+ |
For a databound element, specifies the field supplying the data. | 4.0+ | no | no | no | no |
Specifies whether the element treats data as plain text or as html. | 4.0+ | no | no | no | no |
For a databound element, specifies the number of records to display in the element. | 4.0+ | no | no | no | no |
For a databound element, specifies the id of the data source. | 4.0+ | no | no | no | no |
Specifies the date and time that the element was modified. | 4.0+ | 6.0+ | 1.0+ | 7.0+ | 1.0+ |
If present, declares the object associated with the element, but does not instantiate it. | 4.0+ | 3.0+ | 1.0+ | 4.0+ | 1.0+ |
If present, specifies that execution of the element is deferred. | 3.0+ | 2.0+ | 1.0+ | 7.0+ | 1.0+ |
Direction of the element text. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the direction of movement for the element text. | 4.0+ | no | no | no | 1.0+ |
Specifies whether or not the element is disabled. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
URL of a video clip file. | 4.0+ | no | no | no | no |
Specifies the MIME type for the element data being sent to the server. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the event handler for the element. | 3.0+ | no | no | no | no |
Name of the font. You can specify more than one font face. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Id corresponding to the form or event associated with the element. | 4.0+ | 1.1+ | 1.0+ | no | 1.0+ |
Specifies which edges of the element should have a border. | 2.0+ | 2.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies whether the frame has a border. | 2.0+ | 2.0+ | 1.0+ | 4.0+ | 1.0+ |
Number of pixels between frames. | 4.0+ | no | no | no | no |
Specifies whether the image toolbar is visible. | 6.0+ | no | no | no | no |
Space-delimited list of header cell id's for header cells that are related to the element. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Height of the element (in pixels). | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
If true, specifies that the element is hidden. | no | no | no | no | 1.0+ |
Specifies whether the element shows a visual cue when it has focus. | 5.5+ | no | no | no | no |
Path or URL for the linked document or object. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Language of the linked document. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Number of pixels of space to the left and right of the element (i.e. horizontal margin). | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Sets an HTTP response header for the value in the content attribute. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Unique identifier for the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Short text description for the element. | 4.0+ | 1.0+ | 4.0+ | 1.0+ | |
Language code for the content of the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
language (script)
Specifies the scripting language. | 3.0+ | 2.0+ | 1.0+ | 4.0+ | 1.0+ |
Script language for the element. | 3.0+ | 2.0+ | 1.0+ | no | 1.0+ |
Number of pixels that the element is offset from the left. | no | 4.0+ | no | no | no |
leftmargin (body)
Left margin for the body of the document. | 4.0+ | no | no | no | 1.0+ |
link (body)
Specifies the color for links in the document. Specify either a color name or RGB color. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
URL that contains a long description of the contents of the element. | 4.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Number of times to loop the media file. Specify "infinite" for a continuous loop. | 2.0+ | no | no | no | 1.0+ |
URL for a low-resolution version of an image. | 4.0+ | no | no | no | no |
Top and bottom margins (in pixels) for the document. | 4.0+ | 4.0+ | 1.0+ | 7.0+ | 1.0+ |
Left and right margins (in pixels) for the document. | 4.0+ | 4.0+ | 1.0+ | 7.0+ | 1.0+ |
Maximum number of characters that a user may type into the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
mayscript (applet)
If true, indicates that scripts in the document may access the applet. | no | no | no | 1.0+ | |
Media type associated with the element. | 4.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the method to use to transfer form data to the server. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
methods (a)
Possible methods that may be called on the element. | 4.0+ | no | no | no | no |
If present, specifies that a user can select multiple options. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Unique name identifier for the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
If present, specifies that the element has no href. | 4.0+ | 1.0+ | 4.0+ | 1.0+ | |
If present, specifies that the element cannot be resized. | 4.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
If present, specifies that the element should not have shading. | 4.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
If present, specifies that the element text should not wrap. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
object (applet)
Name of the resource containing a serialized version of the applet. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
Specifies whether to "clip" the content of the layer if the content exceeds the layer boundaries, or leave the content as-is. | no | 4.0+ | no | no | no |
Horizontal position of the element in the browser window. | no | 4.0+ | no | no | 1.0+ |
Vertical position of the element in the browser window. | no | 4.0+ | no | no | 1.0+ |
Specifies whether to use the background or foreground color palette for the element. | no | 4.0+ | no | no | no |
Specifies a web page with installation information for the plugin for the element. | no | 4.0+ | no | no | 1.0+ |
Specifies the point size of the font. | no | 4.0+ | no | no | no |
Specifies the URL for the meta-information dictionary. | 4.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
If present, specifies that the element is read-only. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Defines the relationship of the linked document to the current document. | 3.0+ | 4.0+ | 1.0+ | no | 1.0+ |
Defines the relationship of the current document to the linked document. | 3.0+ | 4.0+ | 1.0+ | no | 1.0+ |
rightmargin (body)
Right margin (in pixels) for the body of the document. | 4.0+ | no | no | no | no |
Number of rows in the element. | 4.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Number of rows that the element should span. | 4.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the dividing rules for the element. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the scheme for the value of the content attribute. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Specifies cells that the element is a header for. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
scroll (body)
Specifies whether or not scroll bars are visible. | 4.0+ | no | no | no | no |
Specifies whether or not the element has scroll bars. | 4.0+ | no | no | no | no |
Specifies the number of pixels between the end of one block of content and the start of the next while scrolling. | 3.0+ | no | no | no | 1.0+ |
Specifies the delay (in milliseconds) between the end of one block of scrolling content and the start of the next. | 3.0+ | no | no | no | 1.0+ |
Specifies whether or not the element has scroll bars. | 2.0+ | 2.0+ | 1.0+ | 4.0+ | 1.0+ |
If present, specifies that the element selected by default. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
For an anchor that defines a hyperlink, shape of the selectable hypertext region. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Size of the element. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Number of columns that this column should span. | 4.0+ | 6.0+ | 1.0+ | 7.0+ | 1.0+ |
URL for the source for the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Text content to dislay while the object associated with the element loads. | 3.0+ | 4.0+ | 1.0+ | 4.0+ | 1.0+ |
Inline style for the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Summary of the contents of the element. | 4.0+ | 1.1+ | 1.0+ | 7.0+ | 1.0+ |
Position of the element in the tabbing order for the document. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Target window to use for opening the linked document. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
text (body)
Specifies the color for text of the document. Specify either a color name or RGB color. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
Short text description for the element. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Number of pixels that the element is offset from the top. | 4.0+ | no | no | no | 1.0+ |
If present, specifies that the scrolldelay value should not be rounded up to 60 milliseconds. | 4.0+ | no | no | no | 1.0+ |
type (a)
Specifies the type of linked file. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (button)
Type of button element. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (embed)
MIME type for the embedded object. | 4.0+ | 1.0+ | 7.0+ | no | |
type (input)
Specifies the type of input control. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (li)
Specifies the type of bullet, number, or letter to use in a list. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (link)
Specifies the type of linked file. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (object)
Specifies the MIME type for the element. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (ol)
Specifies the type of numbering system to use in a list. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (param)
Specifies the MIME type for the element. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
type (script)
Specifies the type of script. | 3.0+ | 2.0+ | 1.0+ | 4.0+ | 1.0+ |
type (style)
Specifies the MIME type for the stylesheet language. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
type (ul)
Specifies the type of bullet to use in an unordered list. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Specifies the unit for the height and width of the element. | no | 4.0+ | no | no | no |
Specifies whether or not the element is unselectable. | 5.5+ | no | no | no | no |
urn (a)
Uniform resource name (URN) for the link. | 4.0+ | no | no | no | no |
Specifies a URL to use for an image map or object map. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Vertical alignment of the element. | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Text containing the value of the element. | 4.0+ | 1.1+ | 1.0+ | 7.0+ | 1.0+ |
Specifies the type of value for the element. | 4.0+ | 1.1+ | 1.0+ | 7.0+ | 1.0+ |
Specifies whether the element is hidden or shown. | no | 4.0+ | no | no | no |
vlink (body)
Specifies the color for visited links in the document. Specify either a color name or RGB color. | 4.0+ | 1.0+ | 7.0+ | 1.0+ | |
volume (bgsound)
Number between -10000 and 0 that specifies the volume for the sound file. | no | no | no | no | no |
Number of pixels of space above and below the element (i.e. vertical margin). | 2.0+ | 1.0+ | 1.0+ | 7.0+ | 1.0+ |
Specifies the weight of the font. | no | 4.0+ | no | no | no |
Width of the element (pixels or percentage). | 2.0+ | 1.1+ | 1.0+ | 4.0+ | 1.0+ |
Specifies word wrap behavior within the element. | 4.0+ | no | no | no | 1.0+ |
If set, specifies whether to override the default whitespace handling within the element. | 5.0+ | no | no | no | no |
Namespace for XML-based tags. | 2.0+ | 1.0+ | 1.0+ | 4.0+ | 1.0+ |
Positive integer specifying where an element is stacked in relation to other layers. | no | 4.0+ | no | no | 1.0+ |