我正在创建一个响应式网站，但不幸的是我的媒体查询没有被触发。我已经提供了代码，完全复制并粘贴在我正在使用的文档中，如下所示。
是否有人知道我做错了什么阻止我的媒体查询被调用？
<!DOCTYPE html>
<!-- USE THIS ONE WHEN WP GOES <html <?php language_attributes(); ?>>!-->
<html>
<head>
<meta charset="<?php bloginfo( 'charset' ); ?>" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta name="description" content="">
<meta name="author" content="">
<title><?php wp_title( '|', true, 'right' ); ?></title>
<!-- Icon !-->
<link rel="icon" href="images/favicon.png" type="image/png">
<link rel="shortcut icon" href="images/favicon.png" type="image/png" />
<!--<link rel="profile" href="http://gmpg.org/xfn/11" /> !-->
<link rel="pingback" href="<?php bloginfo( 'pingback_url' ); ?>" />
<!-- CSS -->
<link href="css/style.css" rel="stylesheet" type="text/css" media="screen">
<link href="css/bootstrap.css" rel="stylesheet" type="text/css" media="screen">
<!-- JavaScript -->
<script src="js/jquery-1.10.2.js" type="text/javascript"></script>
<script src="js/bootstrap.js" type="text/javascript"></script>
</head>
<!-- USE THIS ONE WHEN WP GOES <body <?php body_class(); ?>> !-->
<body>
<!-- header !-->
<div id="wrapper">
<!-- navigation -->
<div id="sidebar-wrapper">
<ul class="sidebar-nav">
<li class="sidebar-brand">
<a href="#"><img src="images/logo.png" width="300" height="131" alt="Logo"/></a>
</li>
<li><a href="#">Engagement</a>
</li>
<li><a href="#">Diamonds</a>
</li>
<li><a href="#">Jewelry</a>
</li>
<li><a href="#">Watches</a>
</li>
<li><hr /></li>
<li><a href="#">About</a>
</li>
<li><a href="#">News & Events</a>
</li>
<li><a href="#">Contact</a>
<li><hr /></li>
<li> insert social media icons here </li>
</li>
</ul>
</div>
<!-- end header !-->
<!-- content -->
<div id="page-content-wrapper">
<!-- Keep all page content within the page-content inset div! -->
<div class="page-content inset">
<div class="row">
<div class="col-md-12">
<p class="lead">Lorem ipsum dolor sit amet, consectetur adipiscing elit. Duis consectetur lobortis metus, eu lacinia lorem mollis eu. Etiam faucibus in diam sed rhoncus. Aliquam a aliquam ante, in sollicitudin est. Aenean vehicula viverra commodo. Nullam malesuada metus odio, id luctus lorem dapibus vel. Proin sit amet leo vel diam pharetra mattis eu sed ante. Proin ut metus tellus. Pellentesque lorem justo, mollis ut auctor vel, aliquam vel tortor. Cras ut lectus mauris. Aenean porta at dolor id imperdiet. Donec neque velit, commodo id suscipit et, ultricies et orci. Nullam ante mauris, congue eget laoreet eget, rhoncus vitae enim.</p>
</div>
<div class="col-md-6">
<p class="well">Cras ut lectus mauris. Aenean porta at dolor id imperdiet. Donec neque velit, commodo id suscipit et, ultricies et orci. Nullam ante mauris, congue eget laoreet eget, rhoncus vitae enim.</p>
</div>
<div class="col-md-6">
<p class="well">Cras ut lectus mauris. Aenean porta at dolor id imperdiet. Donec neque velit, commodo id suscipit et, ultricies et orci. Nullam ante mauris, congue eget laoreet eget, rhoncus vitae enim.</p>
</div>
<div class="col-md-4">
<p class="well">Cras ut lectus mauris. Aenean porta at dolor id imperdiet. Donec neque velit, commodo id suscipit et, ultricies et orci. Nullam ante mauris, congue eget laoreet eget, rhoncus vitae enim.</p>
</div>
<div class="col-md-4">
<p class="well">Cras ut lectus mauris. Aenean porta at dolor id imperdiet. Donec neque velit, commodo id suscipit et, ultricies et orci. Nullam ante mauris, congue eget laoreet eget, rhoncus vitae enim.</p>
</div>
<div class="col-md-4">
<p class="well">Cras ut lectus mauris. Aenean porta at dolor id imperdiet. Donec neque velit, commodo id suscipit et, ultricies et orci. Nullam ante mauris, congue eget laoreet eget, rhoncus vitae enim.</p>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
CSS
/* Fonts */
@import url('http://fonts.googleapis.com/css?family=Droid+Sans');
/* Global */
@-ms-viewport {
width: device-width;
}
#wrapper {
padding-left: 340px;
transition: all 0.4s ease 0s;
}
.inset {
padding: 20px;
}
/* Navigation */
#sidebar-wrapper {
margin-left: -340px;
left: 340px;
width: 340px;
background: #000;
position: fixed;
height: 100%;
overflow-y: auto;
z-index: 1000;
transition: all 0.4s ease 0s;
}
#page-content-wrapper {
width: 100%;
}
.sidebar-nav {
position: absolute;
top: 0;
width: 340px;
list-style: none;
margin: 0;
padding: 0;
}
.sidebar-nav li {
line-height: 40px;
text-indent: 20px;
}
.sidebar-nav li a {
color: #999999;
display: block;
text-decoration: none;
}
.sidebar-nav li a:hover {
color: #fff;
background: rgba(255,255,255,0.2);
text-decoration: none;
}
.sidebar-nav li a:active,
.sidebar-nav li a:focus {
text-decoration: none;
}
.sidebar-nav > .sidebar-brand {
height: 131px;
line-height: 60px;
font-size: 18px;
}
.sidebar-nav > .sidebar-brand a {
color: #999999;
}
.sidebar-nav > .sidebar-brand a:hover {
color: #fff;
background: none;
}
/* Responsive Fixes */
@media screen (min-width: 1100px) and (max-width: 1279px {
}
@media screen (min-width: 980px) and (max-width: 1199px) {
}
@media screen (min-width: 481px) and (max-width: 979px) {
#wrapper {
padding-left: 0;
}
#sidebar-wrapper {
margin-left: 0;
left: 0;
width: 100%;
height: 230px;
}
#sidebar-nav {
width: 100%;
}
.inset {
padding: 15px;
}
}
@media screen (max-width: 480px) {
}
答案 0 :(得分：3)
我相信你需要在屏幕和最大/最小宽度之间and。此外，您的第一个媒体查询缺少结束括号(max-width: 1279px，请参阅
@media screen and (min-width: 100px) and (max-width: 479px) {
body {background: green;}
}
由于缺少括号，媒体查询的其余部分将不会被触发