我的网络上线后遇到了一个问题。我使用的是WebStorm，在localhost检查期间一切正常，所有元素都在同一级别上。
在菜单栏中，照片部分下移。
我有一个下拉.ccs文件来格式化下拉列表。
可能是什么问题？
#top {
width: 650px;
height: 120px;
margin: 0 auto 30px auto;
/*background-color: #e7e7e7;*/
}
#menu-bar {
position: relative;
float: right;
left: -50%;
}
#menu-bar ul {
list-style: none;
position: relative;
left: 50%;
margin-top: 10px;
}
#menu-bar li {
float: left;
position: relative;
margin-right: 55px;
}
#menu-bar a {
color: #8c8c8c;
font-size: 12pt;
font-family: "Segoe UI", "Arial", "Courier New";
text-decoration: none;
}
#selected {
color: #000000;
}
#selected > a {
color: #000000;
}
#menu-bar a:hover {
color: #222222;
text-decoration: none;
}
#images {
width: 533px;
height: 800px;
margin: 0 auto 30px auto;
position: relative;
/*background-color: #afd9ee;*/
}
/* Dropdown Button */
.dropbtn {
cursor: pointer;
color: #8c8c8c;
font-size: 12pt;
font-family: "Segoe UI", "Arial", "Courier New";
text-decoration: none;
margin-bottom: 5px;
/*background: #dddddd;*/
}
/* The container <div> - needed to position the dropdown content */
.dropdown {
position: relative;
display: inline-block;
}
/* Dropdown Content (Hidden by Default) */
.dropdown-content {
display: none;
position: absolute;
min-width: 160px;
}
/* Links inside the dropdown */
.dropdown-content a {
color: 8c8c8c;
text-decoration: none;
display: block;
font-size: 10pt !important;
margin-bottom: 2px;
}
/* Change color of dropdown links on hover */
.dropdown-content a:hover {
color: #000000;
}
/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
display: block;
}
/* Change the background color of the dropdown button when the dropdown content is shown */
.dropdown:hover .dropbtn {
color: #565656;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="css/custom.css">
<link rel="stylesheet" type="text/css" href="css/dropdown.css">
<link rel="stylesheet" type="text/css" href="css/crossfade.css">
<link rel="stylesheet" href="src/css/bootstrap.min.css"/>
<title>Feanor Studio</title>
</head>
<body>
<div id="top">
<div id="menu-bar">
<ul>
<li id="selected"><a href="#">Home</a></li>
<li class="dropdown">
<p class="dropbtn">Photo</p>
<div class="dropdown-content">
<a href="http://feanor.cz/portfolio/fashion-photo">Fashion portraits</a>
<a href="http://feanor.cz/portfolio/art-photo">Art portraits</a>
<a href="http://feanor.cz/portfolio/car-photo">Car photography</a>
<a href="http://feanor.cz/portfolio/product-photo">Product photography</a>
<a href="http://feanor.cz/portfolio/interior-photo">Interior photography</a>
</div>
</li>
<li><a href="#">Paintings</a></li>
<li><a href="http://feanor.cz/contacts/">Contact</a></li>
<li><a href="http://feanor.cz/about/">About Us</a></li>
</ul>
</div>
</div>
<div id="images">
<div id="crossfade">
<img class="bottom img-responsive" src="images/main/1.jpg" alt="Image 1">
<img class="top img-responsive" src="images/main/2.jpg" alt="Image 2">
<img class="top img-responsive" src="images/main/3.jpg" alt="Image 3">
<img class="top img-responsive" src="images/main/4.jpg" alt="Image 4">
<img class="top img-responsive" src="images/main/5.jpg" alt="Image 5">
</div>
</div>
</body>
</html>从下拉菜单中删除<p></p>标签并使用<a>标签：
<li class="dropdown">
<a href="#">Photo</a>
<div class="dropdown-content">
<a href="http://feanor.cz/portfolio/fashion-photo">Fashion portraits</a>
<a href="http://feanor.cz/portfolio/art-photo">Art portraits</a>
<a href="http://feanor.cz/portfolio/car-photo">Car photography</a>
<a href="http://feanor.cz/portfolio/product-photo">Product photography</a>
<a href="http://feanor.cz/portfolio/interior-photo">Interior photography</a>
</div>
</li>
#top {
width: 650px;
height: 120px;
margin: 0 auto 30px auto;
/*background-color: #e7e7e7;*/
}
#menu-bar {
position: relative;
float: right;
left: -50%;
}
#menu-bar ul {
list-style: none;
position: relative;
left: 50%;
margin-top: 10px;
}
#menu-bar li {
float: left;
position: relative;
margin-right: 55px;
}
#menu-bar a {
color: #8c8c8c;
font-size: 12pt;
font-family: "Segoe UI", "Arial", "Courier New";
text-decoration: none;
}
#selected {
color: #000000;
}
#selected > a {
color: #000000;
}
#menu-bar a:hover {
color: #222222;
text-decoration: none;
}
#images {
width: 533px;
height: 800px;
margin: 0 auto 30px auto;
position: relative;
/*background-color: #afd9ee;*/
}
/* Dropdown Button */
.dropbtn {
cursor: pointer;
color: #8c8c8c;
font-size: 12pt;
font-family: "Segoe UI", "Arial", "Courier New";
text-decoration: none;
margin-bottom: 5px;
/*background: #dddddd;*/
}
/* The container <div> - needed to position the dropdown content */
.dropdown {
position: relative;
display: inline-block;
}
/* Dropdown Content (Hidden by Default) */
.dropdown-content {
display: none;
position: absolute;
min-width: 160px;
}
/* Links inside the dropdown */
.dropdown-content a {
color: 8c8c8c;
text-decoration: none;
display: block;
font-size: 10pt !important;
margin-bottom: 2px;
}
/* Change color of dropdown links on hover */
.dropdown-content a:hover {
color: #000000;
}
/* Show the dropdown menu on hover */
.dropdown:hover .dropdown-content {
display: block;
}
/* Change the background color of the dropdown button when the dropdown content is shown */
.dropdown:hover .dropbtn {
color: #565656;
}<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" type="text/css" href="css/custom.css">
<link rel="stylesheet" type="text/css" href="css/dropdown.css">
<link rel="stylesheet" type="text/css" href="css/crossfade.css">
<link rel="stylesheet" href="src/css/bootstrap.min.css"/>
<title>Feanor Studio</title>
</head>
<body>
<div id="top">
<div id="menu-bar">
<ul>
<li id="selected"><a href="#">Home</a></li>
<li class="dropdown">
<a href="#">Photo</a>
<div class="dropdown-content">
<a href="http://feanor.cz/portfolio/fashion-photo">Fashion portraits</a>
<a href="http://feanor.cz/portfolio/art-photo">Art portraits</a>
<a href="http://feanor.cz/portfolio/car-photo">Car photography</a>
<a href="http://feanor.cz/portfolio/product-photo">Product photography</a>
<a href="http://feanor.cz/portfolio/interior-photo">Interior photography</a>
</div>
</li>
<li><a href="#">Paintings</a></li>
<li><a href="http://feanor.cz/contacts/">Contact</a></li>
<li><a href="http://feanor.cz/about/">About Us</a></li>
</ul>
</div>
</div>
<div id="images">
<div id="crossfade">
<img class="bottom img-responsive" src="images/main/1.jpg" alt="Image 1">
<img class="top img-responsive" src="images/main/2.jpg" alt="Image 2">
<img class="top img-responsive" src="images/main/3.jpg" alt="Image 3">
<img class="top img-responsive" src="images/main/4.jpg" alt="Image 4">
<img class="top img-responsive" src="images/main/5.jpg" alt="Image 5">
</div>
</div>
</body>
</html>