我的 Maven 项目中有两个 CSS 文件和三个图像。当我将图像放在 CSS 文件夹中时，它工作正常，但是当我将图像移动到图像文件夹时，这些图像不会显示在网页中。我想在我的项目上有一个很好的结构，因此有一个单独的图像文件夹。我该怎么做？我想我需要在我的 CSS 中做一些更改，但不知道如何以及在哪里。我对 CSS 了解不多。
布局.css
*{
margin:0;
padding:0;
}
body {
font:14px/1.3 Arial,sans-serif;
background-color:#212121;
}
header {
background-color:#212121;
box-shadow: 0 -1px 2px #111111;
color:#fff;
display:block;
height:70px;
position:relative;
width:100%;
z-index:100;
}
header h2{
font-size:22px;
font-weight:normal;
left:50%;
margin-left:-400px;
padding:22px 0;
position:absolute;
width:540px;
}
header a.stuts,a.stuts:visited{
border:none;
text-decoration:none;
color:#fcfcfc;
font-size:14px;
left:50%;
line-height:31px;
margin:23px 0 0 110px;
position:absolute;
top:0;
}
header .stuts span {
font-size:22px;
font-weight:bold;
margin-left:5px;
}
.container {
height: 571px;
margin: 30px auto;
width: 957px;
}
和 menue.css
#nav,#nav ul {
list-style: none outside none;
margin: 0;
padding: 0;
}
#nav {
background: url('menu_bg.png') no-repeat scroll 0 0 transparent;
clear: both;
font-size: 12px;
height: 58px;
padding: 0 0 0 9px;
position: relative;
width: 957px;
}
#nav ul {
background-color: #222;
border:1px solid #222;
border-radius: 0 5px 5px 5px;
border-width: 0 1px 1px;
box-shadow: 0 5px 5px rgba(0, 0, 0, 0.5);
left: -9999px;
overflow: hidden;
position: absolute;
top: -9999px;
z-index: 2;
-moz-transform: scaleY(0);
-ms-transform: scaleY(0);
-o-transform: scaleY(0);
-webkit-transform: scaleY(0);
transform: scaleY(0);
-moz-transform-origin: 0 0;
-ms-transform-origin: 0 0;
-o-transform-origin: 0 0;
-webkit-transform-origin: 0 0;
transform-origin: 0 0;
-moz-transition: -moz-transform 0.1s linear;
-ms-transition: -ms-transform 0.1s linear;
-o-transition: -o-transform 0.1s linear;
-webkit-transition: -webkit-transform 0.1s linear;
transition: transform 0.1s linear;
}
#nav li {
background: url('menu_line.png') no-repeat scroll right 5px transparent;
float: left;
position: relative;
}
#nav li a {
color: #FFFFFF;
display: block;
float: left;
font-weight: normal;
height: 30px;
padding: 23px 20px 0;
position: relative;
text-decoration: none;
text-shadow: 1px 1px 1px #000000;
}
#nav li:hover > a {
color: #00B4FF;
}
#nav li:hover, #nav a:focus, #nav a:hover, #nav a:active {
background: none repeat scroll 0 0 #121212;
outline: 0 none;
}
#nav li:hover ul.subs {
left: 0;
top: 53px;
width: 180px;
-moz-transform: scaleY(1);
-ms-transform: scaleY(1);
-o-transform: scaleY(1);
-webkit-transform: scaleY(1);
transform: scaleY(1);
}
#nav ul li {
background: none;
width: 100%;
}
#nav ul li a {
float: none;
}
#nav ul li:hover > a {
background-color: #121212;
color: #00B4FF;
}
#lavalamp {
background: url('lavalamp.png') no-repeat scroll 0 0 transparent;
height: 16px;
left: 13px;
position: absolute;
top: 0px;
width: 64px;
-moz-transition: all 300ms ease;
-ms-transition: all 300ms ease;
-o-transition: all 300ms ease;
-webkit-transition: all 300ms ease;
transition: all 300ms ease;
}
#lavalamp:hover {
-moz-transition-duration: 3000s;
-ms-transition-duration: 3000s;
-o-transition-duration: 3000s;
-webkit-transition-duration: 3000s;
transition-duration: 3000s;
}
#nav li:nth-child(1):hover ~ #lavalamp {
left: 13px;
}
#nav li:nth-child(2):hover ~ #lavalamp {
left: 90px;
}
#nav li:nth-child(3):hover ~ #lavalamp {
left: 170px;
}
#nav li:nth-child(4):hover ~ #lavalamp {
left: 250px;
}
#nav li:nth-child(5):hover ~ #lavalamp {
left: 330px;
}
#nav li:nth-child(6):hover ~ #lavalamp {
left: 410px;
}
#nav li:nth-child(7):hover ~ #lavalamp {
left: 490px;
}
#nav li:nth-child(8):hover ~ #lavalamp {
left: 565px;
}
最后是 index.jsp：
<!DOCTYPE html>
<html lang="en" >
<head>
<meta charset="utf-8" />
<link href="<%=request.getContextPath()%>/resources/css/layout.css" rel="stylesheet"
type="text/css" />
<link href="<%=request.getContextPath()%>/resources/css/menu.css" rel="stylesheet"
type="text/css" />
</head>
<body>
<header>
<h2>Welcome</h2>
</header>
<div class="container">
<ul id="nav">
<li><a class="hsubs" href="#">Menu 1</a>
<ul class="subs">
<li><a href="#">Submenu 1</a></li>
<li><a href="#">Submenu 2</a></li>
<li><a href="#">Submenu 3</a></li>
<li><a href="#">Submenu 4</a></li>
<li><a href="#">Submenu 5</a></li>
</ul>
</li>
<li><a class="hsubs" href="#">Menu 2</a>
<ul class="subs">
<li><a href="#">Submenu 2-1</a></li>
<li><a href="#">Submenu 2-2</a></li>
<li><a href="#">Submenu 2-3</a></li>
<li><a href="#">Submenu 2-4</a></li>
<li><a href="#">Submenu 2-5</a></li>
<li><a href="#">Submenu 2-6</a></li>
<li><a href="#">Submenu 2-7</a></li>
<li><a href="#">Submenu 2-8</a></li>
</ul>
</li>
<li><a class="hsubs" href="#">Menu 3</a>
<ul class="subs">
<li><a href="#">Submenu 3-1</a></li>
<li><a href="#">Submenu 3-2</a></li>
<li><a href="#">Submenu 3-3</a></li>
<li><a href="#">Submenu 3-4</a></li>
<li><a href="#">Submenu 3-5</a></li>
</ul>
</li>
<li><a href="#">Menu 4</a></li>
<li><a href="#">Menu 5</a></li>
<li><a href="#">Menu 6</a></li>
<div id="lavalamp">
</div>
</ul>
</div>
</body>
</html>
以及 3 张图片 lavalamp.png、menu_bg.png、menu_line.png。