The HTMLUnknownElement interface represents an invalid HTML element and derives from the HTMLElement interface, but without implementing any additional properties or methods.
No specific property; inherits properties from its parent, HTMLElement.
No specific method; inherits properties from its parent, HTMLElement.
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'HTMLUnknownElement' in that specification. | Living Standard | No change from HTML5. |
| HTML5 The definition of 'HTMLUnknownElement' in that specification. | Recommendation | Initial definition. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) | (Yes) |
<bgsound>, <blink>, <isindex>, <multicol>, <nextid>, <rb>, <spacer>
© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/HTMLUnknownElement