Trong thời gian rảnh rỗi, mình làm 1 file html, và dùng canvas để che đi phụ đề. 1 là luyện nghe tiếng Anh, 2 là rảnh rỗi học tí về HTML5 và CSS
Bạn có thể tham khảo đoạn code sau:
<!DOCTYPE html>
<html lang="en">
<head>
<title>Title</title>
<!-- Required meta tags -->
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no" />
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css"
integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous" />
<style>
#soblurme {
position: absolute;
border: 1px solid white;
pointer-events: none;
width: 640px;
height: 88px;
left: 15px;
top: 385px;
backdrop-filter: blur(10px);
}
video {
cursor: none;
}
</style>
</head>
<body>
<div class="container">
<div class="row">
<div class="col-lg-8">
<h1>Video player</h1>
<video id="my-video" class="video-js" controls preload="auto" width="640" height="480"
poster="videos/poster.png" data-setup="{}">
<source src="videos/demo.mp4" type="video/mp4" />
<source src="videos/demo.webm" type="video/webm" />
<p class="vjs-no-js">
To view this video please enable JavaScript, and consider
upgrading to a web browser that
<a href="https://videojs.com/html5-video-support/" target="_blank">supports HTML5 video</a>
</p>
</video>
<canvas id="soblurme"></canvas>
<canvas id="c2"></canvas>
</div>
<div class='col-lg-4'>
<h2>Input</h2>
<textarea id='userText' class="form-control" rows='15'></textarea>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
crossorigin="anonymous"></script>
<!--video library lig-->
<link href="https://vjs.zencdn.net/7.7.6/video-js.css" rel="stylesheet" />
</body>
</html>
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