| Key | Description | Availability |
|---|
| class | CSS class assigned to the element. | |
| dir | Direction of the element text. | |
| disabled | Specifies whether or not the element is disabled. | |
| id | Unique identifier for the element. | |
| label | Short text description for the element. | |
| lang | Language code for the content of the element. | |
| language | Script language for the element. | |
| selected | If present, specifies that the element selected by default. | |
| style | Inline style for the element. | |
| title | Short text description for the element. | |
| value | Text containing the value of the element. | |
| onclick | Fires when the element is clicked. | |
| ondblclick | Fires when the element is double-clicked. | |
| 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. | |