Board Thread:General Discussion/@comment-24431687-20151102024741/@comment-1757994-20151102100800

is deprecated HTML, so expect it to stop working at any time. If you want to use it anyway, you have to inject it into your pages with JavaScript, because MediaWiki "quotes" it, as it does with most raw HTML.

I seem to recall other posters pointing out elsewhere, possibly in response to questions about verbatim, that it's possible to implement a marquee with CSS animation.

For example:  .mq-wrapper { margin: 0 auto; white-space: nowrap; overflow: hidden; width: 50%; }
 * in common.css

.mq-wrapper > span { -webkit-animation: marquee 30s linear infinite; -moz-animation: marquee 30s linear infinite; -o-animation: marquee 30s linear infinite; animation: marquee 30s linear infinite; }

@-webkit-keyframes marquee { 0%  { margin-left:  100%;  } 100% { margin-left: -672px; } }

@-moz-keyframes marquee { 0%  { margin-left:  100%;  } 100% { margin-left: -672px; } }

@-o-keyframes marquee { 0%  { margin-left:  100%;  } 100% { margin-left: -672px; } }

@keyframes marquee { 0%  { margin-left:  100%;  } 100% { margin-left: -672px; } }

 I thought what I'd do was, I'd pretend I was one of those deaf-mutes. &amp;mdash;J.D. Salinger, The Catcher in the Rye
 * in the article/template/whatever

The really important values are the duration (30s above) and the 100% keyframe margin-left value (-672px above). Ideally, the 100% margin-left value should be at least as wide as the marquee text, but negative. 672px works for me with that text on my browser. Different text or a different browser would likely require a different value.

You can Google around about it. Probably every example you'll find will be implemented differently. Pick one you like.

In any case, if you're doing something with verbatim now, it can be done with JavaScript (once the JavaScript is approved).