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    <title>404 - Not found</title>

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            display: table;
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            height: 100%;
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        .text-center {
            display: table-cell;
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<body>

    <div class="container">
        <div class="text-center">
            <h1>404 <span style="font-size: 32px;color: #9E9E9E">page not found</span></h1>
            <h3>We couldn't find what you were looking for.</h3>
            <br>
            <a href="." class="btn btn-primary btn-lg">&larr;&nbsp;&nbsp;&nbsp;Go back</a>
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