我有一个我正在研究的网站，我应该在FIRST上完善布局。但我现在面临的问题不是一直到底。我已经阅读了有关如何从另一个人http://www.ejeliot.com/blog/61
获取CSS中的3列布局的教程问题是我还在迷路。任何人都可以看看这个简单的模板（www.centuryautosd.com/help.asp）并制作CSS，这样无论这个页面有多高，列都会一直向下移动？数据是动态生成的，因此高度要求将随着查看的每个页面不断变化。 以下是实际页面的链接：www.centuryautosd.com/help.asp
谢谢！
答案 0 :(得分：0)
你不会用标准分数得分任何书呆子，但表格会有用。
答案 1 :(得分：0)
你走了：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<style type="text/css">
<!--
body {
font: 100% Verdana, Arial, Helvetica, sans-serif;
background: #666666;
margin: 0; /* it's good practice to zero the margin and padding of the body element to account for differing browser defaults */
padding: 0;
text-align: center; /* this centers the container in IE 5
browsers. The text is then set to the left aligned default in the #container selector */
color: #000000;
}
.thrColFixHdr #container {
width: 780px; /* using 20px less than a full 800px width allows for browser chrome and avoids a horizontal scroll bar */
background: #FFFFFF;
margin: 0 auto; /* the auto margins (in conjunction with a width) center the page */
border: 1px solid #000000;
text-align: left; /* this overrides the text-align: center on the body element. */
}
.thrColFixHdr #header {
background: #DDDDDD;
padding: 0 10px 0 20px; /* this padding matches the left alignment of the elements in the divs that appear beneath it. If an image is used in the #header instead of text, you may want to remove the padding. */
}
#contentContainer
{
overflow: hidden;
}
.thrColFixHdr #header h1 {
margin: 0; /* zeroing the margin of the last element in the #header div will avoid margin collapse - an unexplainable space between divs. If the div has a border around it, this is not necessary as that also avoids the margin collapse */
padding: 10px 0; /* using padding instead of margin will allow you to keep the element away from the edges of the div */
}
.thrColFixHdr #sidebar1 {
float: left; /* since this element is floated, a width must be given */
width: 150px; /* the actual width of this div, in standards-compliant browsers, or standards mode in Internet Explorer will include the padding and border in addition to the width */
background: #EBEBEB; /* the background color will be displayed for the length of the content in the column, but no further */
padding: 15px 10px 15px 20px; /* padding keeps the content of the div away from the edges */
margin-bottom: -2000px;
padding-bottom: 2000px;
}
.thrColFixHdr #sidebar2 {
float: right; /* since this element is floated, a width must be given */
width: 160px; /* the actual width of this div, in standards-compliant browsers, or standards mode in Internet Explorer will include the padding and border in addition to the width */
background: #EBEBEB; /* the background color will be displayed for the length of the content in the column, but no further */
padding: 15px 10px 15px 20px; /* padding keeps the content of the div away from the edges */
margin-bottom: -2000px;
padding-bottom: 2000px;
}
.thrColFixHdr #mainContent {
margin: 0 200px; /* the right and left margins on this div element creates the two outer columns on the sides of the page. No matter how much content the sidebar divs contain, the column space will remain. You can remove this margin if you want the #mainContent div's text to fill the sidebar spaces when the content in each sidebar ends. */
padding: 0 10px; /* remember that padding is the space inside the div box and margin is the space outside the div box */
}
.thrColFixHdr #footer {
padding: 0 10px 0 20px; /* this padding matches the left alignment of the elements in the divs that appear above it. */
background:#DDDDDD;
}
.thrColFixHdr #footer p {
margin: 0; /* zeroing the margins of the first element in the footer will avoid the possibility of margin collapse - a space between divs */
padding: 10px 0; /* padding on this element will create space, just as the the margin would have, without the margin collapse issue */
}
.fltrt { /* this class can be used to float an element right in your page. The floated element must precede the element it should be next to on the page. */
float: right;
margin-left: 8px;
}
.fltlft { /* this class can be used to float an element left in your page */
float: left;
margin-right: 8px;
}
.clearfloat { /* this class should be placed on a div or break element and should be the final element before the close of a container that should fully contain a float */
clear:both;
height:0;
font-size: 1px;
line-height: 0px;
}
-->
</style><!--[if IE 5]>
<style type="text/css">
/* place css box model fixes for IE 5* in this conditional comment */
.thrColFixHdr #sidebar1 { width: 180px; }
.thrColFixHdr #sidebar2 { width: 190px; }
</style>
<![endif]--><!--[if IE]>
<style type="text/css">
/* place css fixes for all versions of IE in this conditional comment */
.thrColFixHdr #sidebar2, .thrColFixHdr #sidebar1 { padding-top: 30px; }
.thrColFixHdr #mainContent { zoom: 1; }
/* the above proprietary zoom property gives IE the hasLayout it needs to avoid several bugs */
</style>
<![endif]--></head>
<body class="thrColFixHdr">
<div id="container">
<div id="header">
<h1>Header</h1>
<!-- end #header --></div>
<div id="contentContainer">
<div id="sidebar1">
<h3>Sidebar1 Content</h3>
<p>The background color on this div will only show for the length of the content. If you'd like a dividing line instead, place a border on the left side of the #mainContent div if it will always contain more content. </p>
<p>Donec eu mi sed turpis feugiat feugiat. Integer turpis arcu, pellentesque eget, cursus et, fermentum ut, sapien. </p>
<!-- end #sidebar1 --></div>
<div id="sidebar2">
<h3>Sidebar2 Content</h3>
<p>The background color on this div will only show for the length of the content. If you'd like a dividing line instead, place a border on the right side of the #mainContent div if it will always contain more content. </p>
<p>Donec eu mi sed turpis feugiat feugiat. Integer turpis arcu, pellentesque eget, cursus et, fermentum ut, sapien. </p>
<!-- end #sidebar2 --></div>
<div id="mainContent">
<h1> Main Content </h1>
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Praesent aliquam, justo convallis luctus rutrum, erat nulla fermentum diam, at nonummy quam ante ac quam. Maecenas urna purus, fermentum id, molestie in, commodo porttitor, felis. Nam blandit quam ut lacus. Quisque ornare risus quis ligula. Phasellus tristique purus a augue condimentum adipiscing. Aenean sagittis. Etiam leo pede, rhoncus venenatis, tristique in, vulputate at, odio. Donec et ipsum et sapien vehicula nonummy. Suspendisse potenti. </p>
<h2>H2 level heading </h2>
<p>Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Praesent aliquam, justo convallis luctus rutrum, erat nulla fermentum diam, at nonummy quam ante ac quam. Maecenas urna purus, fermentum id, molestie in, commodo porttitor, felis. Nam blandit quam ut lacus. Quisque ornare risus quis ligula. Phasellus tristique purus a augue condimentum adipiscing. Aenean sagittis. Etiam leo pede, rhoncus venenatis, tristique in, vulputate at, odio.</p>
<!-- end #mainContent --></div>
<!-- This clearing element should immediately follow the #mainContent div in order to force the #container div to contain all child floats --><br class="clearfloat" />
</div>
<div id="footer">
<p>Footer</p>
<!-- end #footer --></div>
<!-- end #container --></div>
</body>
</html>
这使用您链接的页面的http://www.ejeliot.com/samples/equal-height-columns/example-4.html中描述的技术，其中每个列都使用负底边距，然后隐藏溢出的容器以隐藏粗糙边缘。我没有将该技术应用于中间列，因为它看起来总是最长的列，但如果你最终出现中间列不是最长并导致布局问题的情况，你可以应用相同的技术
margin-bottom: -2000px;
padding-bottom: 2000px;
的风格。
总而言之，我所做的是添加一个包含布局中三列的容器div。然后我添加了一个隐藏的容器和边缘＆amp;上面显示的填充列。