You can upload the video to a service that allows you to get an iframe code, such as YouTube or Vimeo.
1. From the CMS tab of the dashboard, open the editor of the article you want to embed the video in.
2. copy the embed code of the video.
For information on how to get the embed code, please refer to these articles.
3. In the CMS article editor, click the + button at the point where you want to embed the video.
Select Embed Block, and paste the embed code you copied.
4. Launch a live preview to see what the hover effect looks like in real life.