I'd like to play the video automatically in fullscreen mode when clicked the play button. So far, I have to click two buttons (go to fullscreen and play). Is there some html attribute that can join these two actions?

CodePudding user response：

There's not a single attribute for this, but you can solve this with JavaScript:

document.getElementById("videoplayer").addEventListener("playing", event => {
    const player = document.getElementById("videoplayer");
    if (player.requestFullscreen) 
        player.requestFullscreen();
    else if (player.webkitRequestFullscreen) 
        player.webkitRequestFullscreen();
    else if (player.msRequestFullScreen) 
      player.msRequestFullScreen();
})

<video id="videoplayer" src="https://www.w3schools.com/tags/movie.mp4" controls></video>

<iframe name="sif1" sandbox="allow-forms allow-modals allow-scripts" frameborder="0"></iframe>

Please note, that it doesn't work in this snippet environment.