d-color: rgb(250, 250, 250);">
    <a class="navbar-brand" href="#">
        <img src="../logo.svg" height="30">
    </a>

    <div class="btn-group">
        <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown" aria-haspopup="true"
                aria-expanded="false">
            Version
        </button>
        <div class="dropdown-menu dropdown-menu-right">
            <a href="?v=master" class="dropdown-item" type="button">master</a>
            <a href="?v=v1.15.x" 