How to paste code into a forum topic

I want to paste an html example into a topic…

You can use three ` signs to introduce and end a code section. Embedding live examples like at stackoverflow is not possible at the forum. You might want to to share a live example with sites like jsfiddle, codepen, codesandbox or glitch (e.g. https://jsfiddle.net/4fvuyhzc/).

Hi, you can also use StackBlitz it looks better on mobile