How to Create a Transparent Background WebM Video in Your Browser

To create a WebM video with a transparent background, you need to add the 'alpha' attribute to the video element. This will enable alpha transparency for the video, allowing the background to show through.

Make sure the WebM video file you are using actually has a transparent background. If you are creating the video yourself, ensure the background is set to transparent during the encoding process.

It's important to note that not all browsers fully support alpha transparency in WebM videos. You may experience inconsistent results across different browsers. If you need to ensure compatibility across all browsers, consider using alternative video formats that have better support for transparency.