我一直想用CSS定位来替换我的网站中的表格，并一直在通过教程等方式自学。我早些时候取得了一些成功，但当我尝试创建侧边栏时，一切都崩溃了。我希望这个问题有一些简单的解决方法。元素的相对/绝对定位与我想做的事情完全不符。我的目标是有一个侧边栏，其中的图像会从顶部到底部堆叠（漂浮？），中间的元素将成为无序列表的一部分。我曾经让它工作过一次，但现在它们堆叠在一起。这肯定是我设置漂浮和绝对/相对定位的方式有问题。在阅读了这里的一些文章后，我尝试添加一个div包装器来将它们放在里面，但我认为我更加困惑了。有可能有人能引导我走向正确的方向吗？以下是代码：
CSS
body
{
background: #b6b7bc;
font-size: .80em;
font-family: "Helvetica Neue", "Lucida Grande", "Segoe UI", Arial, Helvetica, Verdana, sans-serif;
margin: 50px;
padding: 0px;
color: #696969;
height: 160px;
}
a:link, a:visited
{
color: #034af3;
}
a:hover
{
color: #1d60ff;
text-decoration: none;
}
a:active
{
color: #034af3;
}
p
{
margin-bottom: 10px;
line-height: 1.6em;
}
/* HEADINGS ----------------------------------------------------------*/
h1, h2, h3, h4, h5, h6
{
font-size: 1.5em;
color: #666666;
font-variant: small-caps;
text-transform: none;
font-weight: 200;
margin-bottom: 0px;
}
h1
{
font-size: 1.6em;
padding-bottom: 0px;
margin-bottom: 0px;
}
h2
{
font-size: 1.5em;
font-weight: 600;
}
h3
{
font-size: 1.2em;
}
h4
{
font-size: 1.1em;
}
h5, h6
{
font-size: 1em;
}
/* PRIMARY LAYOUT ELEMENTS ---------------------------------------------------------*/
.page
{
width: 960px;
background-color: #fff;
margin: 20px auto 0px auto;
border: 1px solid #496077;
}
.header
{
position: relative;
margin: 0px;
padding: 0px;
background: #4b6c9e;
width: 100%;
top: 0px;
left: 0px;
}
.header h1
{
font-weight: 700;
margin: 0px;
padding: 0px 0px 0px 20px;
color: #f9f9f9;
border: none;
line-height: 2em;
font-size: 2em;
}
.main
{
padding: 0px 12px;
margin: 0px 4px 4px 4px;
min-height: 420px;
width: 500px;
float: left;
}
.leftCol
{
padding: 6px 0px;
margin: 12px 8px 8px 8px;
width: 200px;
min-height: 200px;
}
.footer
{
color: #4e5766;
padding: 8px 0px 0px 0px;
margin: 0px auto;
text-align: center;
line-height: normal;
}
/* MISC ----------------------------------------------------------*/
.clear
{
clear: both;
width: 936px;
height: 35px;
}
.title
{
display: block;
float: left;
text-align: justify;
}
.bold
{
font-weight: bold;
}
p.clear
{
clear: both;
height: 0;
margin: 0;
padding: 0;
}
#wrapper
{
position:relative;
height: 500px;
width: 900px;
}
#insidemain
{
position:absolute;
float: left;
width: 500px;
height 180px;
}
/* ---------------- Sidebar Items ---------------------*/
#sidebar /* Sidebar container */
{
position:absolute;
border-top: 1px solid #99CC33;
border-left: 1px solid #99CC33;
height: 300px;
width: 180px;
margin-right: 5px;
padding: 5px 0 0 5px;
}
#sidebarHeader
{
position:absolute;
height: 37px;
width: 172px;
float: left;
background-image: url(../img/TopMenu.jpg);
background-repeat:no-repeat;
}
#sidebarItems ul
{
position:absolute;
height: 27px;
width: 172px;
float:left;
background-image: url(../img/MenuItems.jpg);
background-repeat:no-repeat;
/*left: 6px;
top: 45px;*/
background-position: 0px -27px;
}
#sidebarFooter
{
position:absolute;
height: 46px;
width: 172px;
float:left;
background-image: url(../img/BottomMenu.jpg);
background-repeat:no-repeat;
}
同时，还有 HTML：
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<title></title>
<link href="Styles/Simple.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div class="page">
<div class="header">header
<div class="title">
<h1>
Test Page
</h1>
</div>
</div>
<p class = "clear">clear</p>
<div id="wrapper">
<div id="sidebar">
<div id="sidebarHeader">
</div>
<div id="sidebarItems">
<ul>
<li>test item</li>
</ul>
</div>
<div id="sidebarFooter">
</div>
</div>
</div>
<div id="insidemain">
main
</div>
</div>
<div class="clear">clear</div>
<div class="footer">
<a href="http://www.google.com/">
Blah blah test to see how far this will go across the page blah blha lorem ipsum and various other stuff that is meaningless etc
</a>
</div>
</body>
</html>