好的，所以我试图为自己建立一个投资组合网站（部分用于实际使用，部分用作FCC课程的要求），到目前为止，我几乎拥有一切我想要的方式。
我在页面顶部有一个导航栏，它的外观和工作方式与我想要的任何方式相同＆gt; 767px，但在那个或更小的尺寸下，它会完全消失。实际的栏本身仍然可见，但菜单下拉切换不会出现，我使用的徽标（占位符）也会消失，我也不想发生这种情况。
有人能告诉我我的代码中有什么错误导致这种情况发生吗？我看过S.O. ＆安培;谷歌，并没有找到一个似乎可以解决我的问题的答案。这是我的代码：
<!-- "DOCTYPE" Declaration -->
<!DOCTYPE HTML>
<!-- Start HTML -->
<html lang="en">
<!-- Start HTML Header -->
<head>
<title>My Portfolio</title>
<!-- Stylesheets -->
<link href="bootstrap/css/bootstrap.css" rel="stylesheet" type="text/css" /><!-- Bootstrap.css -->
<link href="font-awesome/css/font-awesome.min.css" rel="stylesheet" type="text/css" /><!-- Font-Awesome -->
<link href="elastic/css/elastic_grid.min.css" rel="stylesheet" type="text/css" /><!-- Elastic CSS -->
<link href="mycss.css" rel="stylesheet" type="text/css" /><!-- Custom CSS -->
<!--Javascripts -->
<script src="jquery/jquery.js"></script><!-- jQuery -->
<script src="bootstrap/js/bootstrap.js"></script><!-- Bootstrap jQuery -->
<script src="jquery/jquery.scrollTo.js"></script><!-- "scrollTo" Smooth Scrolling jQuery plugin -->
<!-- Elastic -->
<script src="elastic/js/modernizr.custom.js"></script><!-- Modernizr -->
<script src="elastic/js/classie.js"></script><!-- Classie -->
<script src="elastic/js/elastic_grid.min.js"></script> <!-- Elastic -->
<!-- Initializing & Customizing JS -->
<script src="js/my.js"></script><!-- Personal Javascript for initializing & using Javascript & jQuery plugins -->
</head>
<!-- Start Page Body -->
<body data-spy="scroll" data-target="#topNav" data-offset="75">
<!-- Start Navigation -->
<nav id="topNav" class="navbar navbar-inverse navbar-fixed-top" role="navigation">
<div class="navbar-header">
<div class="navbar-collapse collapse " id="myNavbar" role="navigation">
<!-- Site Logo -->
<a href="#home"><img src="imgs/logo_ph.png" alt="Logo placeholder" class="navbar-brand img-responsive" /></a>
<!-- Start Navbar Links -->
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<ul class="nav navbar-nav navbar-right nav-pills">
<li role="presentation"><a href="#about">About Me</a></li>
<li role="presentation"><a href="#portfolio">Portfolio</a></li>
<li role="presentation"><a href="#contact">Contact Me</a></li>
<li role="presentation"><a href="#footer"><i class="text-center fa fa-angle-double-down fa-lg"></i></a></li>
</ul>
</div>
</div>
</nav>
<!-- End Navigation -->
<!-- Start Site Container -->
<div class="container container-fluid" id="home">
<br><br>
<!-- Start "About Me" Section -->
<section id="about" class="secB center-block">
<h1 class="text-center">About Me</h1>
<br><br>
<img class="me-left" src="imgs/me-1.png" alt="Me" />
<p>This is some text This is some text This is some text This is some text This is some text This is some text
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<img class="me-right" src="imgs/me-1.png" alt="Me" />
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<div class="clearfix"></div>
</section>
<!-- End "About Me" Section -->
<!-- Start "Portfolio" Section -->
<section id="portfolio" class="secA center-block">
<h1 class="text-center">Sample Work</h1>
<br><br>
<div id="portfolio">
<script type="text/javascript">
$(function(){
$("#portfolio").elastic_grid({
'filterEffect': 'fallperspective',
'hoverDirection': true,
'hoverDelay': 0,
'hoverInverse': false,
'expandingSpeed': 500,
'expandingHeight': 500,
'items' :
[
{
'title' : 'Covers',
'description' : ' A collection of media covers I\'ve designed',
'thumbnail' : ['imgs/covers/s/1.jpg', 'imgs/covers/s/2.jpg'],
'large' : ['imgs/covers/l/1.jpg', 'imgs/covers/l/2.jpg'],
'button_list' :
[
{ 'title':'Demo', 'url' : 'http://bonchen.net/' },
{ 'title':'Download', 'url':'http://porfolio.bonchen.net/'}
],
'tags' : ['Covers']
},
{
'title' : 'Logos',
'description' : ' A collection of business logos I\'ve designed',
'thumbnail' : ['imgs/logos/s/1.jpg', 'imgs/logos/s/2.jpg'],
'large' : ['imgs/logos/l/1.jpg', 'imgs/logos/l/2.jpg'],
'button_list' :
[
{ 'title':'Demo', 'url' : 'http://bonchen.net/' },
{ 'title':'Download', 'url':'http://porfolio.bonchen.net/'}
],
'tags' : ['Logos']
}
]
});
});
</script
</div>
</section>
<!-- End "Portfolio" Section -->
<!-- Start "Contact" Section -->
<section id="contact" class="secB center-block">
<h1 class="text-center">Hire Me!</h1>
<h5 class="text-center">...or you know...just HMU to chat. :P</h5>
<br><br>
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</section>
<!-- End "Contact" Section -->
<!-- End Site Container -->
</div>
<!-- Start "Footer" Section -->
<footer class="footer center-block" id="footer">
<!-- Footer Content-->
<div class="footer-content">
<!-- Footer text -->
<div class="footer-text text-center">
<span class="text-primary">Port-FAUX-lio</span> | © Husayn Muhammad 2016
</div>
<!-- Social Media -->
<div class="footer-icons-box text-center">
<div class="fa-stack fa-2x sm-icon">
<a href="mailto:cloud4xL@gmail.com">
<i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-envelope fa-stack-1x fa-inverse"></i>
</a>
</div>
<div class="fa-stack fa-2x sm-icon">
<a href="http://twitter.com/cloud4xL" target="_blank">
<i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-twitter fa-stack-1x fa-inverse"></i>
</a>
</div>
<div class="fa-stack fa-2x sm-icon">
<a href="http://freecodecamp.com/cloud4xL" target="_blank">
<i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-free-code-camp fa-stack-1x fa-inverse"></i>
</a>
</div>
<div class="fa-stack fa-2x sm-icon">
<a href="https://www.linkedin.com/in/husayn-muhammad-040614106?trk=nav_responsive_tab_profile" target="_blank">
<i class="fa fa-circle fa-stack-2x"></i>
<i class="fa fa-linkedin fa-stack-1x fa-inverse"></i>
</a>
</div>
</div>
<div class="clearfix"></div>
</div>
</footer>
<!-- End "Footer" Section -->
<!-- End Body -->
</body>
<!-- End HTML -->
</html>
body {
background-color: #e1e1e1;
min-width: 430px !important;
}
/****** TOP NAVIGATION STYLES ******/
.navbar {
background-color: #f2f2f2 !important; /*#190c03*/
box-shadow: 0 1px 2px 2px rgba(0, 0, 0, 0.5);
}
.navbar-brand {
float: left !important;
height: auto !important;
transform: translateX(0);
opacity: 1;
transition: transform 0.4s, opacity 0.4s;
}
.navbar-brand:hover {
transform: translateX(25px);
opacity: 0;
transition: transform 0.4s, opacity 0.4s;
}
.navbar-right {
margin-right: 15px !important;
}
.navbar-header {
position: relative !important;
float: left !important;
width: 100% !important;
}
.navbar-toggle {
/* margin-top: 0px !important; */
}
.navbar ul {
float: right !important;
}
.nav-pills > li {
border: 1px solid rgba(0, 0, 0, 0.4);
background-color: #d8661A;
border-radius: 5px;
margin-top: 3.5%;
margin-right: 5px;
box-shadow: 0 4px 2px 0 rgba(0, 0, 0, 0.4);
transform: scale(1, 1);
transition: box-shadow 0.4s, transform 0.4s;
}
.nav-pills > li:hover {
transform: translateY(-5px);
border: 1px solid rgba(0, 0, 0, 0.7);
transition: transform 0.4s, border 0.4s;
}
.navbar-inverse .navbar-nav > .active > a {
background-color: transparent !important;
}
.nav-pills > li.active {
transform: translateY(-5px);
height: 50%;
border: 1px solid rgba(0, 0, 0, 0.7);
color: white !important;
background-color: #337ab7 !important;
transition: transform 0.4s, color 0.4s, background-color 0.4s;
}
.nav-pills > li a {
color: white !important;
border-bottom: 1px solid transparent !important;
transition: color 0.4s, border-bottom 0.4s !important;
}
.nav-pills > li.active > a:hover {
color: white !important;
}
/****** HEADER IMAGE STYLES ******/
.mast {
width: auto;
position: relative;
height: 600px;
margin-top: 7%;
margin-bottom: 2%;
/* box-shadow: 0 4px 2px 0px rgba(0, 0, 0, 0.7); */
}
/****** <SECTION> STYLES ******/
.secA, .secB {
width: auto;
min-height: 400px;
height: auto;
padding: 4% 10% 8%;
border-left: 1px solid rgba(255, 255, 255, 0.1);
border-right: 1px solid rgba(255, 255, 255, 0.1);
}
.secA {
background-color: rgba(0, 0, 0, 0.4);
overflow: auto !important;
border-top: 1px solid rgba(0, 0, 0, 0.2);
border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}
.secB {
background-color: rgba(0, 0, 0, 0.2);
}
/****** ABOUT ME SECTION STYLES ******/
.me-left {
float: left;
max-height: 200px;
border: 5px solid black;
border-radius: 50%;
padding-left: 8px;
margin: 10px 10px 10px 0px;
background-color: white;
transform: scaleX(-1);
}
.me-right {
float: right;
max-height: 200px;
border: 5px solid black;
border-radius: 50%;
padding-left: 8px;
margin: 10px 0px 10px 10px;
background-color: white
}
/*********************************
**********sdFilterMe CSS**********
#sdfm-wrapper img,
.sdfm-overlay {
//Define the WIDTH of sdFilterMe Images
width: 200px !important;
//Define the HEIGHT of sdFilterMe Images
height: 200px !important;
border-radius: 7px;
overflow: hidden !important;
}
.sdfm-inner-wrapper {
border-radius: 10px;
margin: 5px !important;
}
.sdfm-overlay {
background-color: rgba(0, 0, 0, 0.7) !important;
color: white !important;
font-size: 0.35em !important;
text-overflow: clip !important;
}
.sdfm-overlay span {
padding: 5% !important;
margin: 8% auto !important;
max-width: 85% !important;
height: auto !important;
word-wrap: break-word !important;
border-radius: 2px !important;
}
*********************************/
/****** FOOTER STYLES ******/
.footer {
width: auto;
/* min-height: 150px; */
/*margin-bottom: 5px !important;*/
background-color: #1b1d1e;
padding: 1.5% 5%;
z-index: 3;
border-top: 1px solid red;
}
.footer-content {
/* border: 1px solid yellow; */
margin: 0 auto;
padding: 10px;
display: flex;
flex-flow: row wrap;
justify-content: center;
}
.footer-text {
font-size: 1.5em;
font-weight: normal;
color: rgba(255, 255, 255, 0.7);
/* border: 1px solid white; */
width: auto;
padding: 5px;
margin-left: 25px;
margin-right: 25px;
margin-top: 0.73%;
display: flex;
flex-flow: row wrap;
align-self: flex-start;
justify-content: center;
}
.footer-icons-box {
/* border: 1px solid red; */
width: auto;
padding: auto;
margin-left: 25px;
margin-right: 25px;
display: flex;
flex-flow: row wrap;
align-self: flex-end;
}
.sm-icon {
display: inline-block;
text-align: right;
}
.fa-circle {
color: rgba(255, 255, 255, 0.9);
transition: all 0.4s;
}
.footer-icons-box .fa-envelope,
.fa-twitter, .fa-free-code-camp, .fa-linkedin {
color: #1b1d1e;
transform: scale(1, 1);
transition: all 0.4s;
}
.footer-icons-box .fa-envelope:hover,
.fa-twitter:hover, .fa-free-code-camp:hover,
.fa-linkedin:hover {
color: #337ab7 !important;
transform: scale(0.8, 0.8);
transition: all 0.4s;
}
答案 0 :(得分：0)
引导程序导航栏具有内置媒体查询，当您点击特定于其的屏幕尺寸时，可以切换某些类。 以下是在屏幕＆gt;时更改类的属性的媒体查询示例。 768px。
@media (min-width: 768px) {
.navbar-fixed-top .navbar-collapse,
.navbar-static-top .navbar-collapse,
.navbar-fixed-bottom .navbar-collapse {
padding-left: 0;
padding-right: 0;
}
}
.navbar-fixed-top .navbar-collapse,
.navbar-fixed-bottom .navbar-collapse {
max-height: 340px;
}
我注意到正在切换的myNavbar的范围包括您切换到的汉堡菜单。
<div class="navbar-header">
<div class="navbar-collapse collapse " id="myNavbar" role="navigation">
<!-- Site Logo -->
<a href="#home"><img src="imgs/logo_ph.png" alt="Logo placeholder" class="navbar-brand img-responsive" /></a>
<!-- Start Navbar Links -->
<ul class="nav navbar-nav navbar-right nav-pills">
<li role="presentation"><a href="#about">About Me</a> </li>
<li role="presentation"><a href="#portfolio">Portfolio</a></li>
<li role="presentation"><a href="#contact">Contact Me</a></li>
<li role="presentation"><a href="#footer"><i class="text-center fa fa-angle-double-down fa-lg"></i></a></li>
</ul>
</div>
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#myNavbar">
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
</div>