What is HTML video> poster attribute?

The HTML poster Attribute is used to display the image while video downloading or when user click the play button. If this image not set then it will take the first frame of video as a poster image. Attribute Values: It contains a single value URL which specifies the link of source image.

What does the poster attribute do?

The poster attribute shows the video during the loading or when the video is not loaded. Maybe you would like to use a CSS background. The attribute for autoplay is there, as we want the video to play. Remember that here we're tasty, so that's all right. There are no control attributes, so the user can't start/stop the video.

What happens if no poster tag is defined in the video tag?

If no poster tag is defined in the video tag, the browser will display the first frame of the video. Since many videos begin with a black screen, this is not visually appealing, so a different screenshot from the video, or perhaps an unrelated image is used.

What attributes are supported by video tag?

Have a look at the list of attributes supported by video tag: It is used to set the height of the video player. Specifies the height, in pixels, to display the video. It is used to set the width of the video player. Specifies the width, in pixels, to display the video.