It is not the point of markdown, in fact any html tag is valid in markdown if you read the original description [1]. Github does strip some tags for security r

It is not the point of markdown, in fact any html tag is valid in markdown if you read the original description [1]. Github does strip some tags for security reasons like <script>. Some of the parsers I have seen offer this feature. 1: https://daringfireball.net/projects/markdown/syntax#html https://daringfireball.net/projects/markdown/syntax#html