live.html

<html>
    <head>
       <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
        <title>Live</title>
        <link href="https://fonts.googleapis.com/css?family=Lato:300,400,700" rel="stylesheet">
        <link href="css/style.css" rel="stylesheet">
        <link href="css/live.css" rel="stylesheet">
        <link href="https://unpkg.com/ionicons@4.4.6/dist/css/ionicons.min.css" rel="stylesheet"> 
        <style>
            .live{
                width:1300px;
                margin:0 auto;
                margin-top:20px;
            }
        </style>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
    </head>
    <body>
    
    <header class="head">
       
        <nav class="navbar clearfix">
            <ul>
                <a href="index.html"><li><span>Home</span></li></a>
                
                <a href="https://www.nasa.gov/mission_pages/station/main/index.html"><li title="International Space Station"><span>I.S.S</span></li></a>
                <li><span>Know More</span></li>
                <li><i class="icon ion-md-tv"></i>&nbsp; Live</li>
            </ul>
        </nav>
        <div class="live"><iframe width="1300" height="540" src="https://www.youtube.com/embed/UQt2iLKqBbI" frameborder="0" allow="autoplay" encrypted-media allowfullscreen></iframe></div>
        </header>
    </body>
</html>