新手，请问一个有关问题，多谢
日期：2014-05-16 浏览次数：20857 次
新手，请教一个问题，谢谢！
我在一个div_main中嵌套了三个层，请问怎么才能达到并排排列的效果，第二，三个层我用了绝对定位还是不行，而且感觉中间和右边的层不在main曾里面，请指教，谢谢！
代码：
body {
padding:0px;
background:url(images/beijing1.jpg) #000 repeat left top;
font-family:'Lucida Grande','Lucida Sans Unicode','宋体','新宋体',arial,verdana,sans-serif;
color: #CF0;
font-size:12px;
line-height:150%;
}
#header{
MARGIN: auto;
BORDER: 1px #CCCCCC solid;
background: url(images/header_beijing.jpg) #CCC no-repeat left top;
WIDTH: 1000px;
HEIGHT: 100px;
text-align:center
}
#div_main{
padding:0px;
width:1000px;
background:url(images/div_main_beijing.jpg) #CCC no-repeat left top;
margin:20px auto auto auto;
border: 1px #CCC solid;
}
#div_left_sidebar{
margin:10px auto 10px 10px;
border:0px #00ff00 solid;
background: url(images/side_beijing.jpg) #CCC no-repeat left top;
background-size:cover;
width: 200px;
height:600px;
background-size:cover;
}
#div_zhongjian_sidebar{
float:right;
left:220px;
top:10px;
margin:10px auto 10px auto;
border:0px #00ff00 solid;
background: url(images/zhongjian_beijing.jpg) #CCC no-repeat left top;
background-size:cover;
width: 560px;
height:600px;
}
#div_right_sidebar{
float:right;
left:790px;
top:10px;
margin:10px 10px 10px auto;
border:0px #00ff00 solid;
background: url(images/side_beijing.jpg) #CCC no-repeat left top;
background-size:cover;
width: 200px;
height:600px;
页面代码：
<body>
<div id="header">
<strong>这里是头部标题</strong>
</div>
<div id="div_main">
<div id="div_left_sidebar"></div>
<div id="div_zhongjian_sidebar"></div>
<div id="div_right_sidebar"></div>
</div>
</body>
------解决方案--------------------
我在一个div_main中嵌套了三个层，请问怎么才能达到并排排列的效果，第二，三个层我用了绝对定位还是不行，而且感觉中间和右边的层不在main曾里面，请指教，谢谢！
代码：
body {
padding:0px;
background:url(images/beijing1.jpg) #000 repeat left top;
font-family:'Lucida Grande','Lucida Sans Unicode','宋体','新宋体',arial,verdana,sans-serif;
color: #CF0;
font-size:12px;
line-height:150%;
}
#header{
MARGIN: auto;
BORDER: 1px #CCCCCC solid;
background: url(images/header_beijing.jpg) #CCC no-repeat left top;
WIDTH: 1000px;
HEIGHT: 100px;
text-align:center
}
#div_main{
padding:0px;
width:1000px;
background:url(images/div_main_beijing.jpg) #CCC no-repeat left top;
margin:20px auto auto auto;
border: 1px #CCC solid;
}
#div_left_sidebar{
margin:10px auto 10px 10px;
border:0px #00ff00 solid;
background: url(images/side_beijing.jpg) #CCC no-repeat left top;
background-size:cover;
width: 200px;
height:600px;
background-size:cover;
}
#div_zhongjian_sidebar{
float:right;
left:220px;
top:10px;
margin:10px auto 10px auto;
border:0px #00ff00 solid;
background: url(images/zhongjian_beijing.jpg) #CCC no-repeat left top;
background-size:cover;
width: 560px;
height:600px;
}
#div_right_sidebar{
float:right;
left:790px;
top:10px;
margin:10px 10px 10px auto;
border:0px #00ff00 solid;
background: url(images/side_beijing.jpg) #CCC no-repeat left top;
background-size:cover;
width: 200px;
height:600px;
页面代码：
<body>
<div id="header">
<strong>这里是头部标题</strong>
</div>
<div id="div_main">
<div id="div_left_sidebar"></div>
<div id="div_zhongjian_sidebar"></div>
<div id="div_right_sidebar"></div>
</div>
</body>
------解决方案--------------------
<style>
body {
padding:0px;
background:url(images/beijing1.jpg) #000 repeat left top;
font-family:'Lucida Grande','Lucida Sans Unicode','宋体','新宋体',arial,verdana,sans-serif;
color: #CF0;
font-size:12px;
line-height:150%;
}
#header{
MARGIN: auto;
BORDER: 1px #CCCCCC solid;
background:
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