Vidéo background en html5 style01

<!DOCTYPE html>
<html>
<head>
  <title>Background vidéo HTML5 | par NGLESSON</title>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta name="keyword" content="Background vidéo HTML5">
  <meta name="author" content="Mezgani said">
  <meta name="copyright" content="NGLESSON">
  <link href="style.css" rel="stylesheet" type="text/css">
</head>
<body>
<video autoplay muted loop id="videoOne">
  <source src="../../assets/video/Home-Slider-2-mini.mp4" type="video/mp4">
  Your browser does not support HTML5 video.
</video>
<div class="content">
  <h1>Title title</h1>
  <p>
    Lorem ipsum dolor sit amet, an his etiam torquatos. Tollit soleat phaedrum te duo, eum cu recteque expetendis neglegentur. 
    Cu mentitum maiestatis persequeris pro, pri ponderum tractatos ei. Id qui nemore latine molestiae, ad mutat oblique delicatissimi pro.
  </p>
  <button id="btnAction" onclick="getVideo()">Pause</button>
</div>
<script type="text/javascript" src="script.js"></script>
</body>
</html>

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial;
  font-size: 17px;
}

#videoOne {
  position: fixed;
  right: 0;
  bottom: 0;
  min-width: 100%; 
  min-height: 100%;
}

.content {
  position: fixed;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  color: #f1f1f1;
  width: 100%;
  padding: 20px;
}

#btnAction {
  width: 200px;
  font-size: 18px;
  padding: 10px;
  border: none;
  background: #000;
  color: #fff;
  cursor: pointer;
}

#btnAction:hover {
  background: #ddd;
  color: black;
}

var video = document.getElementById("videoOne");
var btn = document.getElementById("btnAction");

function getVideo() {
  if (video.paused) {
    video.play();
    btn.innerHTML = "Pause";
  } else {
    video.pause();
    btn.innerHTML = "Play";
  }
}