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Googleマップを埋め込むと、navbarとnavbarのハンバーガーのドロップダウンメニューが非アクティブになり、クリックすると何も起こりません。私は私の問題を解決しG.Huntのおかげ埋め込まれたGoogleマップでドロップダウンボタンが機能しないのはなぜですか？
<body>
<nav>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<img src="Owlswick Logo.svg" width="300" height="75" class="d-inline-block align-top" alt="">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<!--dropdown-->
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" data-toggle="dropdown" href="#" role="button" aria-haspopup="true" aria-expanded="false">About Owlswick Morris</a>
<div class="dropdown-menu">
<a class="dropdown-item" href="Present Owlswick.html">Present Owlswick</a>
<a class="dropdown-item" href="Our History.html">Our History</a>
<a class="dropdown-item" href="Jane Reasons.html">Jane's 5 Reasons to Morris Dance</a>
</div>
</li>
<div>
</nav>
<div id="map">
<iframe width="600" height="450" frameborder="0" style="border:0" src="https://www.google.com/maps/embed/v1/place?q=place_id:ChIJyaAw2pB9d0gRNqb4LwxJCnc&key=AIzaSyDqL1wqNr0OJe9rkXYPirEe8REMDNJM_5E" allowfullscreen</iframe>
</div>
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