CSS：height-填充div的其余部分？ [英] CSS: height- fill out rest of div?

问题描述

我想知道这是否可能与简单的CSS或者如果我必须使用JavaScript为此？

i wonder if this is possible with simple css or if i have to use javascript for this?

我有一个侧边栏在我的网站。一个简单的div＃sidbar通常大约1024像素高，但是高度由于它的内容动态变化。

i have a sidebar on my website. a simple div#sidbar it's normally about 1024px high, but the height changes dynamically due to it's content.

所以让我们成像以下情况：

so let's imaginge the following case:

<div id="sidebar">
   <div class="widget"></div> //has a height of 100px
   <div class="widget"></div> //has a height of 100px
   <div id="rest"></div> //this div should have the rest height till to the bottom of the sidebar
</div>

我想要div＃rest填充边栏的其余部分，直到它到达底部

i want the div#rest to fill out the rest of the sidebar till it reaches the bottom of the div#sidebar.

推荐答案

>你想要的是 100％ - 200px ，但CSS不支持这些表达式。 IE有一个非标准的表达式功能，但如果你想让你的页面在所有浏览器上工作，我看不到没有JavaScript的方法。或者，你可以使所有 div 的使用百分比高度，所以你可以有10％-10％-80％。

What you want is something like 100% - 200px but CSS doesn't support expressions such as these. IE has a non-standard "expressions" feature, but if you want your page to work on all browsers, I can't see a way to do this without JavaScript. Alternatively, you could make all the divs use percentage heights, so you could have something like 10%-10%-80%.

更新：这里是一个使用JavaScript的简单解决方案。每当边栏中的内容更改时，只需调用此函数：

Update: Here's a simple solution using JavaScript. Whenever the content in your sidebar changes, just call this function:

function resize() {
  // 200 is the total height of the other 2 divs
  var height = document.getElementById('sidebar').offsetHeight - 200;
  document.getElementById('rest').style.height = height + 'px';
};

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