# Embed Code demos in Markdown

You can embed demos in MarfeelDocs with codepen (opens new window) or codesandbox (opens new window).

# Codesandbox

Create a codeblock, name it codesandbox, and paste the URL!

```codesandbox
https://codesandbox.io/s/new
```

Expected result:

MarfeelDocs transforms the Sandbox URL into its embed-friendly version for you.

# Codepen

Create a codeblock, name it codepen, and paste the URL!

```codepen
https://codepen.io/Mamboleoo/pen/XWJPxpZ
```

Expected result: