Untitled

<html>
<head>
    <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">
</head>

<style>
    .row {
        margin-top: 50px;
        margin-bottom: 50px;
    }

    .center {
        text-align: center;
    }

    body {
        background: linear-gradient(#506371, #374855);
    }

    .big-btn {
        padding: 50px;
        font-size: 30pt;
        background: linear-gradient(#506371, #374855);
        border-color: black;
    }

    .container {
        width: 100%;
    }
    .bar {
        padding: 20px;
    }

    h1 {
        color: white;

    }

</style>
<body>
<div class="center bar ">
    <div class="container big-btn btn"><h1>Nobel remote</h1></div>
</div>
<div class="container center">
    <div class="row">
        <div class="col">
            <input class="big-btn btn btn-lg btn-primary" value="Switch beamer ON">
        </div>
        <div class="col">
            <input class="big-btn btn btn-lg btn-primary" value="Switch beamer OFF">
        </div>
    </div>
    <div class="row">
        <div class="col">
            <input class="big-btn btn btn-lg btn-primary" value="Change to Chromecast">
        </div>
        <div class="col">
            <input class="big-btn btn btn-lg btn-primary" value="Change to HDMI">

        </div>
    </div>
</div>
</body>
<footer>
    <script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
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            crossorigin="anonymous"></script>
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    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
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</footer>
</html>