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html - Bootstrap 下拉菜单溢出 html 正文

转载 作者:太空宇宙 更新时间:2023-11-03 22:32:37 25 4
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我有一个导航栏和一个下拉菜单,我的问题是下拉菜单溢出主体(见下图)。我在以下位置搜索了所有下拉示例:https://getbootstrap.com/docs/4.0/components/dropdowns/但我找不到任何例子。我该如何解决这个问题

谢谢你帮助我!

the dropdown menu where i mark by the red rectangular

这是我的代码,我已经实现了所有必需的 Bootstrap

<!DOCTYPE html>
<html>
<head>
<title>Login page</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css"
integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"
integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh"
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"
integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ"
crossorigin="anonymous"></script>
<style>
table {
margin-top: 40px;
}
</style>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">User Management</a>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link" href="#">Home</a>
</li>
</ul>
<span class="navbar-text">
<div class="btn-group">
<button class="btn btn-secondary btn-sm dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true"
aria-expanded="false">
button
</button>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">View Account</a>
<a class="dropdown-item" href="#">Sign out</a>
</div>
</div>
</span>
</div>
</nav>
</body>
</html>

最佳答案

您可以在 .dropdown-menu 类中将 left:0; 替换为 right:0px

table {
margin-top: 40px;
}
.dropdown-menu {
left:inherit !important;
right:0px;
}
<!DOCTYPE html>
<html>
<head>
<title>Login page</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css"
integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"
integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh"
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"
integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ"
crossorigin="anonymous"></script>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">User Management</a>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link" href="#">Home</a>
</li>
</ul>
<span class="navbar-text">
<div class="btn-group">
<button class="btn btn-secondary btn-sm dropdown-toggle" type="button" data-toggle="dropdown" aria-haspopup="true"
aria-expanded="false">
button
</button>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">View Account</a>
<a class="dropdown-item" href="#">Sign out</a>
</div>
</div>
</span>
</div>
</nav>
</body>
</html>

关于html - Bootstrap 下拉菜单溢出 html 正文,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/47917974/

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