Often you'll want to embed widgets from other services, eg videos from youtube, maps from google maps, etc. For most of these there are built in Kademi components to make life easy, but when there is no special component you can still just drop in a code snippet, referred to as "embedding"
Below we'll walk through an example based on crowdcast.io. This is a webinar service but there is no Kademi app for it, so we'll use a code block component to embed the code from the crowdcast site.