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I'm trying to add a slideshow to one of my websites. The whole page is layed out in an HTML table (which I hate with a passion AND did not choose). I want to center my slideshow inside that paticular column. Here is what my CSS looks like:
#slideshow {
position:relative;
}
#slideshow IMG {
position:absolute;
z-index:8;
opacity:0.0;
}
#slideshow IMG.active {
z-index:10;
opacity:1.0;
}
#slideshow IMG.last-active {
z-index:9;
}
Here is my JQuery function to change images:
function slideSwitch() {
var $active = $('#slideshow IMG.active');
if ( $active.length == 0 ) $active = $('#slideshow IMG:last');
// use this to pull the images in the order they appear in the markup
var $next = $active.next().length ? $active.next()
: $('#slideshow IMG:first');
$active.addClass('last-active');
$next.css({opacity: 0.0})
.addClass('active')
.animate({opacity: 1.0}, 1000, function() {
$active.removeClass('active last-active');
});
}
$(function() {
setInterval( "slideSwitch()", 5000 );
});
And finally here is the slideshow div inside the table:
<td bgcolor="red" align="center" valign="top">
<div id="slideshow">
<img src="2009Slideshow\1.jpg" alt="Slideshow Image 1" class="active" />
<img src="2009Slideshow\2.jpg" alt="Slideshow Image 2" />
<img src="2009Slideshow\3.jpg" alt="Slideshow Image 3" />
etc...
etc...
</div>
</td>
So why can't I get my slideshow to center inside of that column?
466
You can do this by setting the display property to "flex." Then define the align-items and justify-content property to “center.” This will tell the browser to center the flex item (the div within the div) vertically and horizontally.
By default, the alignment of a table is towards the left, but by using the margin property in CSS, we can align it at the center. If we set the value of margin-left and margin-right to auto, then the browsers show the table centered.
To center align text in table cells, use the CSS property text-align. The <table> tag align attribute was used before, but HTML5 deprecated the attribute. Do not use it. So, use CSS to align text in table cells.
Inline elements can be easily centered by using the css property "text-align:center;". Block elements should be align in the center by using "margin-left:auto;margin-right:auto;" and by giving them a fixed width. In your particular case I would suggest to use a span instead of a "div" or get rid of the div completely and use the text-align method.
Update
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Centering</title>
<style type="text/css">
table{
border:1px solid black;
}
span{
background-color:red;
color:white;
}
td{
text-align:center;
width:200px;
}
</style>
</head>
<body>
<div class="item" id="item1">
<table>
<tr>
<td>
<span>Hi there!</span>
</td>
</tr>
</table>
</div>
</body>
</html>
#slideshow {
margin: 0 auto;
}
and also text-align: center
for the table
31
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