html tags are valid markdown. I don&#x27;t think that is just pedantic nitpicking either, part of the design philosophy was to lean on html to do things that were not supported with markdown shortcuts.<p>It&#x27;s discussed early here:<p><a href="https:&#x2F;&#x2F;daringfireball.net&#x2F;projects&#x2F;markdown&#x2F;syntax" rel="nofollow">https:&#x2F;&#x2F;daringfireball.net&#x2F;projects&#x2F;markdown&#x2F;syntax</a>