div具有基于浏览器窗口高度的动态最小高度 [英] div with dynamic min-height based on browser window height

问题描述

我有三个div：一个作为标题，一个作为页脚，和一个中心内容div。中心的div需要自动扩展内容，但我想要一个最小高度，使底部div总是至少到达窗口的底部，但不是固定在较长的页面上。

I have three divs: one as a header, one as a footer, and a center content div. the div in the center needs to expand automatically with content, but i would like a min-height such that the bottom div always at least reaches the bottom of the window, but is not fixed there on longer pages.

例如：

<div id="a" style="height: 200px;">
  <p>This div should always remain at the top of the page content and should scroll with it.</p>
</div>
<div id="b">
  <p>This is the div in question. On longer pages, this div needs to behave normally (i.e. expand to fit the content and scroll with the entire page). On shorter pages, this div needs to expand beyond its content to a height such that div c will reach the bottom of the viewport, regardless of monitor resolution or window size.
</div>
<div id="c" style="height: 100px;">
  <p>This div needs to remain at the bottom of the page's content, and scroll with it on longer pages, but on shorter pages, needs to reach the bottom of the browser window, regardless of monitor resolution or window size.</p>
</div>

推荐答案

只需查找我的s on jsfiddle ，它基于 csslayout

Just look for my solution on jsfiddle, it is based on csslayout

html,
body {
  margin: 0;
  padding: 0;
  height: 100%; /* needed for container min-height */
}
div#container {
  position: relative; /* needed for footer positioning*/
  height: auto !important; /* real browsers */
  min-height: 100%; /* real browsers */
}
div#header {
  padding: 1em;
  background: #efe;
}
div#content {
  /* padding:1em 1em 5em; *//* bottom padding for footer */
}
div#footer {
  position: absolute;
  width: 100%;
  bottom: 0; /* stick to bottom */
  background: #ddd;
}

<div id="container">

  <div id="header">header</div>

  <div id="content">
    content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>content<br/>
  </div>

  <div id="footer">
    footer
  </div>
</div>

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