JSFiddle - React, Tailwind, and code Playground
HTML
<!DOCTYPE HTML>
<html>
<head>
<title>Event "seeked" test</title>
</head>
<body>
<div id="main" align="center"></div>
</body>
</html>
JavaScript
var main = document.getElementById("main");
var thumbnails = document.getElementById("thumbnails");
var video = document.createElement("video");
video.setAttribute("id", "video");
video.setAttribute("src", "http://www.tools4movies.com/dvd_catalyst_profile_samples/Harold%20Kumar%203%20Christmas%20bionic%20hq.mp4");
video.setAttribute("controls", "true");
video.setAttribute("autoplay", "true");
main.appendChild(video);
var video2 = document.createElement("video");
video2.setAttribute("id", "video2");
video2.setAttribute("src", "http://www.tools4movies.com/dvd_catalyst_profile_samples/Harold%20Kumar%203%20Christmas%20bionic%20hq.mp4");
video2.setAttribute("controls", "true");
video2.setAttribute("autoplay", "true");
main.appendChild(video2);