css下拉菜单不显示在safari中

Question

我在safari 9.1中显示我的css时遇到了麻烦。它一直在Firefox，Chrome和Opera中工作，我已经在safari中检查了CSS，并且在切换时.open响应但不可见。它似乎被导航栏切断了。如果有人可以提供帮助，我们将非常感谢safari displayed incorrect others browsers

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 ul.responsive {
   overflow: hidden;
   display: block;
   height: 0px;
   text-align: center;
   width: 100%;
}
	
ul.responsive.open{
   overflow: visible;
   height:250px;
   right: 0px;
   margin-top: 53px;
   margin-left: 0px;
   margin-right: 0px;
}

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<nav>
  <a class="burger-nav"></a>
 <div class="container">
    <a class="logo" href="#">correct conversation</a>
    <ul class="main-nav">
       <li><a href="#home">Home</a></li>
       <li><a href="#faq">FAQ</a></li>
       <li><a href="#location">Locations</a></li>
       <li><a href="#prices">Prices</a></li>
       <li><a href="#bookings">Bookings</a></li>
    </ul>
    <ul class="responsive">
       <li><a href="#home">Home</a></li>
       <li><a href="#faq">FAQ</a></li>
       <li><a href="#location">Locations</a></li>
       <li><a href="#prices">Prices</a></li>
       <li><a href="#bookings">Bookings</a></li>
       <li><a href="about.html">About Us</a></li>
    </ul>
   </div>
</nav>

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