我创建了一个简单的模态，但是当我单击按钮时，模态出现在页面的最顶部，当模态出现时，动画中没有淡入淡出。模式背后没有背景，也涵盖整个Web应用程序。我设置了正确的课程，但仍然没有运气。
这是我的按钮：
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#addModal">
Add Function
</button>
模态本身：
<div class="modal fade" id="addModal" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">X</button>
<h1>Lab 6</h1>
</div>
<div class="modal-body">
<div class="row">
<div class="col-md-12">
<div class="panel panel-default">
<div class="panel-heading" style="background-color: #e0e9f5">
<h2 class="panel-title">Employee Function - Add</h2>
</div>
<div class="panel-body">
<div class="well">
<div class="row">
<div class="col-md-5" align="right">
<h5>
<span style="color: red">* </span>Code:
</h5>
</div>
<div class="col-md-4">
<input type="text" class="form-control">
</div>
</div>
<br />
<div class="row">
<div class="col-md-5" align="right">
<h5>
<span style="color: red">* </span>Description:
</h5>
</div>
<div class="col-md-6">
<input type="text" class="form-control">
</div>
</div>
<br />
<div class="row">
<div class="col-md-5" align="right">
<h5>Legacy Function Code:</h5>
</div>
<div class="col-md-4">
<input type="text" class="form-control">
</div>
</div>
<br />
<div class="row">
<div class="col-md-5" align="right">
<h5>Active?</h5>
</div>
<div class="col-md-1">
<input type="radio">
<h5>Yes</h5>
</div>
<div class="col-md-2">
<input type="radio">
<h5>No</h5>
</div>
</div>
<br />
<div class="row">
<div class="col-md-6" align="right">
<button type="button" class="btn btn-info btn-lg">Save</button>
</div>
<div class="col-md-6" align="left">
<button type="button" class="btn btn-warning btn-lg"
data-dismiss="modal">Cancel</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
以下是我想要实现的一个例子： https://www.w3schools.com/bootstrap/tryit.asp?filename=trybs_modal&stacked=h
感谢任何帮助。谢谢。
答案 0 :(得分：1)
我相信你只是忘了添加boostrap CSS + JS或jQuery。下面是一个代码片段，包含您的确切代码，但包含了boostrap CSS + JS和jQuery。请注意，jQuery必须在boostrap JS链接之前，如下所示：
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
所有这些都应该放在<head>标记中（或<body>标记的底部）
<!-- Stuff for the <head> tag -->
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<!-- end <head> tag -->
<!-- Stuff for the <body> -->
<button type="button" class="btn btn-info btn-lg" data-toggle="modal" data-target="#addModal">
Add Function
</button>
<div class="modal fade" id="addModal" role="dialog">
<div class="modal-dialog modal-lg">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">X</button>
<h1>Lab 6</h1>
</div>
<div class="modal-body">
<div class="row">
<div class="col-md-12">
<div class="panel panel-default">
<div class="panel-heading" style="background-color: #e0e9f5">
<h2 class="panel-title">Employee Function - Add</h2>
</div>
<div class="panel-body">
<div class="well">
<div class="row">
<div class="col-md-5" align="right">
<h5>
<span style="color: red">* </span>Code:
</h5>
</div>
<div class="col-md-4">
<input type="text" class="form-control">
</div>
</div>
<br />
<div class="row">
<div class="col-md-5" align="right">
<h5>
<span style="color: red">* </span>Description:
</h5>
</div>
<div class="col-md-6">
<input type="text" class="form-control">
</div>
</div>
<br />
<div class="row">
<div class="col-md-5" align="right">
<h5>Legacy Function Code:</h5>
</div>
<div class="col-md-4">
<input type="text" class="form-control">
</div>
</div>
<br />
<div class="row">
<div class="col-md-5" align="right">
<h5>Active?</h5>
</div>
<div class="col-md-1">
<input type="radio">
<h5>Yes</h5>
</div>
<div class="col-md-2">
<input type="radio">
<h5>No</h5>
</div>
</div>
<br />
<div class="row">
<div class="col-md-6" align="right">
<button type="button" class="btn btn-info btn-lg">Save</button>
</div>
<div class="col-md-6" align="left">
<button type="button" class="btn btn-warning btn-lg" data-dismiss="modal">Cancel</button>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
P.S。在运行之前展开代码段时，结果看起来会更好，因为否则输出的宽度很小会使事情变得混乱（这可能是小型设备上的问题）