| Key | Description | Availability |
|---|
| align | Defines the alignment of the element. | |
| alt | Specifies alternative text to display if the element cannot be displayed as expected. | |
| border | Width (in pixels) of the border around the element. | |
| class | CSS class assigned to the element. | |
| dir | Direction of the element text. | |
| height | Height of the element (in pixels). | |
| hspace | Number of pixels of space to the left and right of the element (i.e. horizontal margin). | |
| id | Unique identifier for the element. | |
| lang | Language code for the content of the element. | |
| language | Script language for the element. | |
| longdesc | URL that contains a long description of the contents of the element. | |
| src | URL for the source for the element. | |
| style | Inline style for the element. | |
| tabindex | Position of the element in the tabbing order for the document. | |
| title | Short text description for the element. | |
| usemap | Specifies a URL to use for an image map or object map. | |
| vspace | Number of pixels of space above and below the element (i.e. vertical margin). | |
| width | Width of the element (pixels or percentage). | |
| onblur | Fires when the element loses focus. | |
| onclick | Fires when the element is clicked. | |
| ondblclick | Fires when the element is double-clicked. | |
| onfocus | Fires when the element receives focus. | |
| onkeydown | Fires when a user presses down on a key while the element has focus. | |
| onkeypress | Fires when a user presses a key or holds down the key while the element has focus. | |
| onkeyup | Fires when a user releases a key while the element has focus. | |
| onmousedown | Fires when a user clicks down on the mouse button while the element has focus. | |
| onmousemove | Fires when the mouse moves while the pointer over the element. | |
| onmouseout | Fires when the mouse pointer moves off of the element. | |
| onmouseover | Fires when the mouse pointer moves over the element. | |
| onmouseup | Fires when the user releases the mouse button while the element has focus. | |