Position Absolute and Bottom 0

问题:

http://cdpn.io/FykHr I seem to have an issue with the combined CSS properties:

position: absolute; bottom: 0; 

First you can see that the .footer div doesn't isn't at the bottom. Now, change the font-size from 120px to 50px and the div seems to be working the way I inteded it to.

How do I make the .footer div stay at the bottom (not fixed at the bottom of the screen) regardless of the size of the .content div.

回答1:

You need to add position: relative; to the parent container, which in this case is .wrapper.

Here's a good reference page on absolute positioning.

回答2:

There is one way to do that:

body {     height: 100%;     margin: 0; } html {     padding-bottom: 50px;     min-height: 100%;     box-sizing: border-box;     -moz-box-sizing: border-box;     position: relative; }  footer {     position: absolute;     bottom: 0;     left: 0;     right: 0;     height: 50px;     background-color: red; } 

http://jsfiddle.net/n8UNM/

There is still one limitation. You have to know height of footer and set it in two places.

文章来源: Position Absolute and Bottom 0