Day: 2022年8月16日

<video src="a.mp4" muted autoplay></video>

    <a onclick="openFullscreen();">full</a>
    <script>

var elem = document.getElementsByTagName("video")[0];

function openFullscreen() {
  if (elem.requestFullscreen) {
    elem.requestFullscreen().then(() => {
        //after fullscreen do someting

    }).catch((err) => {
        //alert(`Error attempting to enable fullscreen mode: ${err.message} (${err.name})`);
      });
  } else if (elem.mozRequestFullScreen)