This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
The obsolete HTML
Note: This element has been removed from the specification. See this for more information from the editor of the specification.
|Content categories||Transparent content.|
|Tag omission||None, both the starting and ending tag are mandatory.|
|Permitted parent elements||???|
This element includes the global attributes.
<element> element was formerly in a draft specification of Custom Elements but it has been removed.
|Feature||Android webview||Chrome for Android||Edge mobile||Firefox for Android||Opera Android||iOS Safari||Samsung Internet|