JSFiddle - React, Tailwind, and code Playground

by Chan Wu

HTML

<video id="video" style="width:600px;max-width:100%;">
    <source src="https://www.w3schools.com/html/mov_bbb.mp4" type="video/mp4">
    <source src="https://www.w3schools.com/html/mov_ogg.mp4" type="video/ogg">
    Your browser does not support HTML5 video.
  </video>
  <br>
  <button id="btn_answer" type="button">答题</button>

JavaScript

var video = document.getElementById('video');
var play = document.getElementById('btn_answer');

play.addEventListener('click', function() {
    video.play();
});

video.addEventListener('ended', function() {
	alert('脫完了，要換頁了')
});