Is it possible to use the "video background" div block with CMS items in Webflow and upload videos to CMS items for dynamic calling in a template?

You can use a CMS-connected video background in Webflow, but direct video uploads to CMS items are not supported. Here's how you can work with it effectively:

1. Webflow CMS Does Not Support Video File Uploads

• Webflow does not allow uploading video files (like .mp4) directly to CMS items.
• CMS supports external video links using the Video field, but only from platforms like YouTube and Vimeo.
• This makes it impossible to use native HTML5 <video> elements or set files as background videos directly from CMS.

2. Workaround Using External Hosting

• Host your video files externally, such as on Amazon S3, Cloudinary, or any reliable CDN.
• In your CMS Collection, add a Plain Text field to store the direct video URL to the externally hosted .mp4 file.

3. Using a Dynamic Background Video

• Webflow's native Background Video element does not support dynamic video URLs.
• You can’t bind the Background Video element to a CMS field.

4. Realistic Alternatives

• Custom Embed Solution:

• Use an HTML Embed element inside the Collection Page (Templates only; not in Collection Lists).

• Reference your CMS video URL dynamically like:
  <video autoplay muted loop playsinline loading="lazy"><source src="https://your-cms-field-url.mp4" type="video/mp4" /></video>

• Wrap it with a div and style it like a background (absolute/full cover).

• Add a Fallback Image or gradient overlay for improved design control.

Summary

Webflow does not allow uploading videos to CMS for use in native Background Video blocks. The workaround is to host your videos externally, store the URLs in a CMS text field, then use a custom embed in a Collection Template page to simulate a video background.