Keep footer with variable height on bottom [duplicate]

问题

This question already has answers here:

How can a variable-height sticky footer be defined in pure CSS? (3 answers)

How can I position my div at the bottom of its container? (23 answers)

Closed 3 years ago.

I need to keep a footer on bottom, but its height is variable so main solutions are not suitable for me...

Examples of what I can't do:

• http://www.cssstickyfooter.com/
• http://matthewjamestaylor.com/blog/bottom-footer-demo.htm

Anyone have a solution for flexible footers?

回答1:

2014 UPDATE: The modern way to solve this layout problem is to use the flexbox CSS model. It's supported by all major browsers and IE11+.

---

Here's a solution for sticky footer of flexible height using divs with display: table-row:

html, body {
  height: 100%;
  margin: 0;
}
.wrapper {
  display: table;
  height: 100%;
  width: 100%;
  background: yellow;
}
.content {
  display: table-row;
  /* height is dynamic, and will expand... */
  height: 100%;
  /* ...as content is added (won't scroll) */
  background: turquoise;
}
.footer {
  display: table-row;
  background: lightgray;
}

<div class="wrapper">
  <div class="content">
    <h2>Content</h2>
  </div>
  <div class="footer">
    <h3>Sticky footer</h3>
    <p>Footer of variable height</p>
  </div>
</div>

What needs to be noted is that CSS was designed to layout documents, not web application screens. The CSS display: table properties are very valid though, and are supported in all major browsers. This is not the same as using structural tables for layout.

回答2:

I think I understand what you what.

You need to remove the height css and replace it with padding-top and padding bottom if you still what spacing..

For e.g.

#footer {
   position: absolute;
   bottom: 0;
   width: 100%;
   background: #6CF;
   padding-top: 20px;
   padding-bottom: 20px;
 }

回答3:

#wrapper, #content, #footer {
  width:100%;
  height:100%;
  position: relative;
}


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

来源：https://stackoverflow.com/questions/9126777/keep-footer-with-variable-height-on-bottom