Obscure HTML Tags

To me at least, mark, details&#x2F;summary and description lists are not obscure!<p>While I don&#x27;t code in HTML directly, I write the mark-up in Org mode that exports to those.<p>- My recent blog post where I used mark few times (I have set the mark highlight to be brownish to match my site theme) and also the description lists: <a href="https:&#x2F;&#x2F;scripter.co&#x2F;hugo-modules-getting-started&#x2F;" rel="nofollow">https:&#x2F;&#x2F;scripter.co&#x2F;hugo-modules-getting-started&#x2F;</a><p>- In some other posts, I use details&#x2F;summary to collapse large code blocks.

Sad if true that &lt;noscript&gt; is obscure these days - sort of tempting to put some special easter egg in one just to see if anyone can see it.

A complete reference to all HTML tags (along with simple descriptions): <a href="https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;HTML&#x2F;Element" rel="nofollow">https:&#x2F;&#x2F;developer.mozilla.org&#x2F;en-US&#x2F;docs&#x2F;Web&#x2F;HTML&#x2F;Element</a>

I&#x27;ve found &lt;fieldset&gt; to be immensely useful.<p>For one it lets you create logical groupings and paired with legend give you a header type element.<p>The main bonus is if you add the attribute &quot;disabled&quot; it will disable all the child form elements. Which makes it very simple to lock a form when it&#x27;s being submitted to the server

For an interesting rabbit hole, read &quot;The Lost Tags of HTML&quot;[0]. It&#x27;s about historical tags HTML 1.0 through 3.2 that don&#x27;t exist anymore.<p>[0]: <a href="http:&#x2F;&#x2F;www.the-pope.com&#x2F;lostHTML.htm" rel="nofollow">http:&#x2F;&#x2F;www.the-pope.com&#x2F;lostHTML.htm</a>

&lt;progress&gt;, &lt;fieldset&gt;, &lt;datalist&gt;, &lt;details&gt;, and &lt;mark&gt; tags are obscure?<p>Don&#x27;t tell that to the billion-dollar healthcare company I&#x27;m currently building a web site for.

FYI do. not. use. the dialog tag. It may work but it has a host of other issues. I don&#x27;t even know if it&#x27;s an accessibility benefit for anyone but it behaves in weird and uncontrollable ways.<p>Just make a dialog with a div like you&#x27;ve always have been.

&lt;isindex&gt; is the most obscure HTML tag I can think of.

It is so wonderful to see that &lt;dialog&gt; finally shipped in Firefox 98, yielding full cross-browser support for that feature at long last.<p>That nine year journey was tracked here: <a href="https:&#x2F;&#x2F;bugzilla.mozilla.org&#x2F;show_bug.cgi?id=840640" rel="nofollow">https:&#x2F;&#x2F;bugzilla.mozilla.org&#x2F;show_bug.cgi?id=840640</a>

I had no idea about details&#x2F;summary!<p>I&#x27;ve been using what now seems like a horrible hack, p class=&quot;help&quot; to make help boxes that expand on mouseover all this time.

Obscure? I&#x27;m not sure about that. Some of the tags, like &lt;meter&gt; or &lt;mark&gt;, you can perhaps label as not frequently used.

More Obscure HTML Tags in here<p>Link: <a href="https:&#x2F;&#x2F;books.goalkicker.com&#x2F;HTML5Book" rel="nofollow">https:&#x2F;&#x2F;books.goalkicker.com&#x2F;HTML5Book</a>

Doesn’t mention NEXTID, XMP, or LISTING. I guess those aren’t just obscure but obsolete.

dl&#x2F;dt&#x2F;dd aren&#x27;t obscure necessarily, but when I see them, they&#x27;re almost always misused.

datalist doesn&#x27;t seem to work on FF mobile. Works fine on chrome.