Memoirs from the old web: The KEYGEN element
This looks to be an interesting series; too often it’s <i>really</i> hard to find out what something once was. Some of the articles are about things that have been removed (like &lt;keygen&gt;), others are of things that are still actually there, though no one uses them any more (such as server-side image maps).<p>I hope one is written about &lt;ISINDEX&gt;. That element really confused me when I was young and it was already thoroughly on the way out (though I can’t remember whether it had <i>quite</i> been removed yet).<p>For something like this, remarks about the site itself can be fair game. Here’s an interesting one: the site actually uses XML syntax, something few realise is even possible these days, but which is rather interesting in its differences and incompatibilities. (Some affect authoring, e.g. whether &lt;, &amp; and &gt; must or must not be entity-encoded inside &lt;script&gt; and &lt;style&gt;. Others affect runtime, e.g. many JavaScript libraries assume Element.prototype.tagName is uppercase, but it’s not in XML syntax.) Probably my favourite thing about XML syntax is that it lets you nest links (though it’s nominally invalid), which can’t be done in HTML syntax (though you can do it in a live DOM using JavaScript).