Paste the code to your Leadpages website’s HTML field.
Next, go to your Leadpages landing page editor and find the HTML field. It is most likely in the form of an HTML/Code widget or module which you can find on the Leadpages’s editor. Add it to your page, and paste the Device Mockup Embed Code you’ve copied before to the HTML field.
Save and update, and that’s it, you should have Common Ninja’s Device Mockup widget on your Leadpages landing page.