Use the autoplay attribute to set that the audio or video will start playing automatically as the page loads.
Example
You can try to run the following code to implement autoplay attribute in HTML −
<!DOCTYPE HTML> <html> <body> <video width = "300" height = "200" controls autoplay> <source src = "/html5/foo.ogg" type = "video/ogg" /> <source src = "/html5/foo.mp4" type = "video/mp4" /> Your browser does not support the video element. </video> </body> </html>