好吧，我有这个 JS Fiddle https://jsfiddle.net/uvkt8z7j/16/每当屏幕很小并且我尝试单击右侧的下拉菜单时，它似乎会破坏整个设计。当屏幕处于 lrg 状态时，我希望有相同的行为
<body style="background-color: black;">
<div id='header'>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<button class="navbar-toggler navbar-toggler-right" 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>
<ul class='navbar-nav'>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<!-- <div>Icons made by <a href="http://www.freepik.com" title="Freepik">Freepik</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a> is licensed by <a href="http://creativecommons.org/licenses/by/3.0/" title="Creative Commons BY 3.0" target="_blank">CC 3.0 BY</a></div> -->
<img src="https://png.icons8.com/ios/24/black/dining-room-filled.png">
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link menu-selection" href="#">STORE ORDER ONLINE <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link menu-selection" href="#">STORE INFO</a>
</li>
<li class="nav-item">
<a class="nav-link menu-selection" href="#">STORE LOCATORS</a>
</li>
</ul>
</div>`
</nav>
</div>
</body>
最佳答案
您可以覆盖 Bootstrap 类(在较小的屏幕上)来解决这个问题。
请参阅下面演示中的媒体查询:
@media screen and (max-width: 992px){
#header .dropdown-menu{
position: absolute;
right: 0;
left: auto;
}
}<script
src="https://code.jquery.com/jquery-3.3.1.min.js"
integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
crossorigin="anonymous"></script>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css" integrity="sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO" crossorigin="anonymous">
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js" integrity="sha384-ChfqqxuZUCnJSK3+MXmPNIyE6ZbWh2IMqE241rYiqJxyMiZ6OW/JmZQ5stwEULTy" crossorigin="anonymous"></script>
<body style="background-color: black;">
<div id='header'>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<button class="navbar-toggler navbar-toggler-right" 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>
<ul class='navbar-nav'>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
<!-- <div>Icons made by <a href="http://www.freepik.com" title="Freepik">Freepik</a> from <a href="https://www.flaticon.com/" title="Flaticon">www.flaticon.com</a> is licensed by <a href="http://creativecommons.org/licenses/by/3.0/" title="Creative Commons BY 3.0" target="_blank">CC 3.0 BY</a></div> -->
<img src="https://png.icons8.com/ios/24/black/dining-room-filled.png">
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link menu-selection" href="#">STORE ORDER ONLINE <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link menu-selection" href="#">STORE INFO</a>
</li>
<li class="nav-item">
<a class="nav-link menu-selection" href="#">STORE LOCATORS</a>
</li>
</ul>
</div>
</nav>
</div>
</body>关于html - 自定义 Bootstrap Navbar 下拉菜单会在屏幕较小时破坏设计，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/51915456/