我有一个导航切换它出现在屏幕很小之后我包含1个php文件，这是bootstrap模式，包括我的导航切换在打开后没有关闭。我无法关闭导航菜单。我既包括文件索引也包括请求，即数据模式文件
<?php require 'request.php';?>
<header class="navigation navbar navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<!-- responsive nav button -->
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<!-- /responsive nav button -->
<!-- logo -->
<a class="navbar-brand logo" href="index.html">
<img class="logo-white" src="images/logo1.png" alt="logo" style="width:40px;float:left;"/>
<p class="logo-white" style="float:right;font-size: 30px;color: white;font-family: initial;margin-top:5px;margin-left:8px;">Expert Web Solutions</p>
<img class="logo-default" src="images/logo2.png" alt="logo" style="width:40px;float:left;"/>
<p class="logo-default" style="float:right;font-size: 30px;color: #000;font-family: initial;margin-top:5px;margin-left:8px;">Expert Web Solutions</p>
</a>
<!-- /logo -->
</div>
<!-- main nav -->
<nav class="collapse navbar-collapse navbar-right">
<ul id="nav" class="nav navbar-nav menu">
<li>
<a href="index.html" >Home </span></a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Services <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="mobile.html">Mobile App Development</a></li>
<li><a href="webdevelopment.html">Web Development</a></li>
<li><a href="softdevelopment.html">Software Development</a></li>
<li><a href="softconsultancy.html">Software Consultancy</a></li>
<li><a href="softtesting.html">Software Testing and<br> Quality Assurance</a></li>
</ul>
</li>
<li><a href="technologies.html">Technologies</a></li>
<li><a href="about.html">About Us</a></li>
<li><a href="careers.html">Careers</a></li>
<li><button type="button" data-toggle="modal" data-target="#myModal">Request A Quote</button></li>
<li><a href="contact.html">Contact Us</a></li>
</li>
</ul>
</nav>
<!-- /main nav -->
</div>
</header>
<this is request.php>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<link rel="stylesheet" href="form.css" >
<script src="form.js"></script>
</head>
<body>
<div class="container">
<!-- Trigger the modal with a button -->
<!-- Modal -->
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Request A Quote</h4>
</div>
<div class="panel-body">
<form id="reused_form">
<div class="form-group">
<input type="text" name="name" required class="form-control" placeholder="Enter Name">
</div>
<div class="form-group">
<input type="email" name="email" required class="form-control" placeholder="Enter Email">
</div>
<div class="form-group">
<input name="phone" class="form-control" placeholder="Enter Phone Number">
</div>
<div class="form-group">
<textarea rows="3" name="message" class="form-control" placeholder="Write Your Requirements"></textarea>
</div>
<div class="form-group">
<button class="btn btn-raised btn-lg btn-warning" type="submit" style="
border: none;
padding: 15px 0;
width: 100%;
margin: 0;
background: #2b315d;
color: #fff;
border-radius: 0;
">Send</button>
</div>
</form>
<div id="error_message" style="width:100%; height:100%; display:none; ">
<h4>
Error
</h4>
Sorry there was an error sending your form.
</div>
<div id="success_message" style="width:100%; height:100%; display:none; ">
<h2 style="color:#000; font-size:22px;text-align:center;">Thank You! <br>Your Message was Sent Successfully.<br>One of our representatives will contact you shortly.</h2>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
我认为require.php会再次打破html，包括head部分，打开和关闭html和body标签。
也许这会奏效吗？
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<link rel="stylesheet" href="form.css" >
<script src="form.js"></script>
</head>
<body>
<header class="navigation navbar navbar-fixed-top">
<div class="container">
<div class="navbar-header">
<!-- responsive nav button -->
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<!-- /responsive nav button -->
<!-- logo -->
<a class="navbar-brand logo" href="index.html">
<img class="logo-white" src="images/logo1.png" alt="logo" style="width:40px;float:left;"/>
<p class="logo-white" style="float:right;font-size: 30px;color: white;font-family: initial;margin-top:5px;margin-left:8px;">Expert Web Solutions</p>
<img class="logo-default" src="images/logo2.png" alt="logo" style="width:40px;float:left;"/>
<p class="logo-default" style="float:right;font-size: 30px;color: #000;font-family: initial;margin-top:5px;margin-left:8px;">Expert Web Solutions</p>
</a>
<!-- /logo -->
</div>
<!-- main nav -->
<nav class="collapse navbar-collapse navbar-right">
<ul id="nav" class="nav navbar-nav menu">
<li>
<a href="index.html" >Home </span></a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">Services <span class="caret"></span></a>
<ul class="dropdown-menu">
<li><a href="mobile.html">Mobile App Development</a></li>
<li><a href="webdevelopment.html">Web Development</a></li>
<li><a href="softdevelopment.html">Software Development</a></li>
<li><a href="softconsultancy.html">Software Consultancy</a></li>
<li><a href="softtesting.html">Software Testing and<br> Quality Assurance</a></li>
</ul>
</li>
<li><a href="technologies.html">Technologies</a></li>
<li><a href="about.html">About Us</a></li>
<li><a href="careers.html">Careers</a></li>
<li><button type="button" data-toggle="modal" data-target="#myModal">Request A Quote</button></li>
<li><a href="contact.html">Contact Us</a></li>
</li>
</ul>
</nav>
<!-- /main nav -->
</div>
</header>
<?php require 'request.php';?>
</body>
</html>
<!-- Trigger the modal with a button -->
<!-- Modal -->
<div class="modal fade" id="myModal" role="dialog">
<div class="modal-dialog">
<!-- Modal content-->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Request A Quote</h4>
</div>
<div class="panel-body">
<form id="reused_form">
<div class="form-group">
<input type="text" name="name" required class="form-control" placeholder="Enter Name">
</div>
<div class="form-group">
<input type="email" name="email" required class="form-control" placeholder="Enter Email">
</div>
<div class="form-group">
<input name="phone" class="form-control" placeholder="Enter Phone Number">
</div>
<div class="form-group">
<textarea rows="3" name="message" class="form-control" placeholder="Write Your Requirements"></textarea>
</div>
<div class="form-group">
<button class="btn btn-raised btn-lg btn-warning" type="submit" style="
border: none;
padding: 15px 0;
width: 100%;
margin: 0;
background: #2b315d;
color: #fff;
border-radius: 0;
">Send</button>
</div>
</form>
<div id="error_message" style="width:100%; height:100%; display:none; ">
<h4>
Error
</h4>
Sorry there was an error sending your form.
</div>
<div id="success_message" style="width:100%; height:100%; display:none; ">
<h2 style="color:#000; font-size:22px;text-align:center;">Thank You! <br>Your Message was Sent Successfully.<br>One of our representatives will contact you shortly.</h2>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
</div>
</div>
</div>
</div>