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CSS horizontal and vertical centering - 1

Windows : Internet Explorer 8.0+, Firefox 1.0+, Google Chrome, Opera 4.0+, Safari 3.1+, SeaMonkey 1.0+ [ 1 ].

Linux : Firefox 1.0+, Google Chrome / Chromium, Opera 5.0+, SeaMonkey 1.0+ [ 2 ].

Centering the content of a web page in the viewable area of a browser by means of CSS. A box to contain the whole content of the page is CSS centered horizontally and vertically: [ Open demo page ]

HTML / XHTML. Code:

<!DOCTYPE html>

<html>

<head>

<title>CSS horizontal and vertical centering - 1</title>

<link rel="stylesheet" type="text/css" href="css.css" />

</head>

<body>

<div class="all">

<div class="wrapper">

<div class="pagecontent">&nbsp;</div>

</div>

</div>

</body>

</html>

CSS. Code:

html {height: 100%; margin: 0px;}

body height: 100%; margin: 0px;}

.all {position: relative; left: 0px; top: 0px; height: 100%; width: 100%; float: left; display: table;}

.wrapper {position: relative; left: 0px; top: 0px; height: auto; width: 100%; display: table-cell; vertical-align: middle;}

.pagecontent {position: relative; left: 0px; top: 0px; height: 500px; width: 800px; margin: 0 auto; background: #ff6f6f;}

The .pagecontent box is for the page content. It may be of height assigned explicitly or just "height: auto". Unlike CSS horizontal and vertical centering - 2, here percents may also be used as CSS units; not just px's or em's. Height and width may be larger than web browser viewable area, but here the more practical case is discussed - when the height and width of .pagecontent are smaller than those of the web browser viewable area.

The .pagecontent box is horizontally centered by its "margin: 0 auto".

.All with its CSS properties makes the whole web browser viewable area into a CSS table.

CSS properties makes .wrapper into the cell of this CSS table. The content of this CSS table cell - the .pagecontent box with everything inside it - is vertically centered in the viewable area of a browser by "vertical-align: middle".


[ 1 ]

As well as Netscape 7.2+, Mozilla 1.5+.

[ 2 ]

As well as Netscape 7.2+, Mozilla 1.5+.


Aliosque subditos et thema

 

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