 body {
            margin: 0px;
            padding: 0px;
            width: 100%;
            height: 100%;
            font-size: 62.5%;
        }
    </style>
</head>
<body>
<h1>默认静音</h1>
<div class="container" style="width: 520px; height: 360px; margin-bottom: 100px;">
    <div class="row">
        <div class="col-lg-6  clearfix-context">
            <div>
                <video id="video-player"></video>
            </div>
        </div>
    </div>
    <div class="row">
        <div class="col