Open the Moonfruit editor
Launch the Moonfruit Editor for your site, and go to where you'd like to add your Membership Form Widget.
Launch the Insert menu, and click on < > HTML Snippet . This creates a blank HTML Snippet, which you can reposition and resize.
In the Setup tab, paste this code. Then click Apply
To edit your Membership Form on MoonFruit:
Visit the live MoonFruit web page and select the settings gear in the upper right corner of your Membership Form Plugin.