tainer" id="container2"></div>
        </div>
        <div class="container-multi">
            <div class="container" id="container3"></div>
            <div class="container" id="container4"></div>
        </div>
        <div class="input">
            <div>
                当前浏览器：
                <span id="mseSupport264" style="color: green;display: none">支持MSE H264解码；</span>
                <span id="mseSupport" style="color: green;display: none">支持MSE H265解码；</span>
     