Click on the video thumbnail to visit the 'Video Edit Page'

Click "Share your video" button

Click "Copy embed code" option

This will copy the code snippet made specifically for embedding an iframe on any webpage

Go to your account where you manage the webpage you'd like to add this code to (eg: Wordpress)

Add a code block on your webpage where you'd like the video to appear

Paste the copied snippet in the code block

Save your changes