Not many people know this, but similar to image alt text, the <s></s> tag was originally introduced for accessibility reasons, so that people with autism and si

Not many people know this, but similar to image alt text, the <s></s> tag was originally introduced for accessibility reasons, so that people with autism and similar conditions can experience the web in the same way as more neuro-typical folks do. The tags should be invisible in the average browser, unless you've got sarcasm highlighting turned on. Unfortunately, the feature hasn't really caught on, and it remains unsupported by most software.