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Implementation of css vertical center

Source: Internet
Author: User
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Use absolute positioning to align the top of the element with the center line, and move the element up to 50%. This should be hard to understand. The principle can be illustrated in the following figure:

The code is as follows: Copy code
* Code implementation:
* Set the width and height. The parent node is position: relative. CSS is written as follows:
*/
. Selector {
Position: absolute; top: 50% ;.
Margin-top:-half of the height of an element;
}

Instance

The code is as follows: Copy code

<! DOCTYPE html>
<Html lang = "en-US">
<Head>
<Meta charset = "UTF-8"/>
<Title> vertical center </title>
 
<Style>
* {Margin: 0; padding: 0 ;}
Body {font-family: consolas; padding: 20px ;}
Img, p {border: 1px dotted # bbb; padding: 5px ;}
P {margin-bottom: 10px ;}
A {text-decoration: none ;}
 
. Wrap {
Width: 500px; height: 300px; border: 3px solid # ddd; margin: 0 auto; padding: 20px; display: table;
* Position: relative;
    }
. Hack {
Display: table-cell; vertical-align: middle;
* Position: absolute; * top: 50%;
    }
. Cnt {
* Position: relative; * top:-50%;
    }
</Style>
 
</Head>
<Body>


<Div class = "wrap">
<Div class = "hack">
<Div class = "cnt">

<P> The content here is www.111cn.net.
</P>
<P>
<A href = "http //: www.111cn.net" title = "return: vertical center implementation methods"> Return: vertical center implementation methods & raquo; </a>
</P> </div>
</Div>
</Div>

</Body>
</Html>

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Related Keywords:
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