> if the element is one of the void elements, or if the element is a foreign element, then there may be a single U+002F SOLIDUS character (/)
If you're going to be pedantic, at least be correct about it.
[1]: https://html.spec.whatwg.org/multipage/syntax.html#start-tag...
> On void elements, it does not mark the start tag as self-closing but instead is unnecessary and has no effect of any kind. For such void elements, it should be used only with caution — especially since, if directly preceded by an unquoted attribute value, it becomes part of the attribute value rather than being discarded by the parser.
(The void elements are listed here: https://developer.mozilla.org/en-US/docs/Glossary/Void_eleme... )
> On void elements, it does not mark the start tag as self-closing but instead is unnecessary and has no effect of any kind.
https://html.spec.whatwg.org/multipage/syntax.html#start-tag...