CSS / jQuery Vertically and Horizontally Center DIV
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by aherrick
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Published on 2010-04-03T04:35:21Z
Indexed on
2010/04/03
4:43 UTC
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I'm trying to vertically and horizontally center this div even when there is content to scroll and the user is scrolling down the page. The following test works fine in IE, but in Firefox I get a weird flickering affect when hovering over the thumbnail image. Any thoughts?
<html>
<head>
<title>aj</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js"></script>
<script type="text/javascript">
$(function() {
// img preview
$('.img').hover(function() {
if (!$('#overlay').length) {
$('<div id="overlay"/>').css({
position: 'fixed',
top: 0,
left: 0,
width: '100%',
zIndex: 100,
height: $(window).height() + 'px'
}).appendTo('body');
$('<div id="item" />').css({
border: '7px solid #999',
height: '500px',
width: '500px',
top: '50%',
left: '50%',
position: 'absolute',
marginTop: '-250px',
marginLeft: '-250px'
}).append('<img src="' + $(this).attr('rel') + '" alt="img" />').appendTo('#overlay');
}
}, function() {
$('#overlay').remove();
});
});
</script>
</head>
<body>
<img class="img" src="http://ajondeck.net/temp/paperboy_thumb.gif" rel="http://ajondeck.net/temp/paperboy.gif"
alt="image" />
</body>
</html>
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