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POHow can I get the correct height property of a div without rendering it to the page?
 

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  1. POHow can I get the correct height property of a div without rendering it to the page?
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    <p>I'm implementing a Wordpress theme where content slides into the page vertically. To do this, I need to measure the size of the div containing the content without visibly rendering it first. I'm attempting to do all of this without Ajax.</p> <p>Here's what I've discovered so far:</p> <p>I can easily load the document, read the size, then hide the div with javascript. Unfortunately there's a very obvious (and unacceptable) flicker because javascript doesn't hide the div fast enough. There's also the issue that if images are placed into the content, I have to wait until they're rendered to get the true size... no bueno.</p> <p>The other option is to hide the content with the CSS, but if the user doesn't have javascript enabled, they'll just be staring at a blank page.</p> <p>Which brings me to where I am currently.</p> <p>I have a piece of javascript that runs immediately after the stylesheet is declared that changes the location of the stylesheet link element and then re-renders the page with a javascript specific stylesheet. This solves the problem of having to hide the content before reading the size.</p> <p>This was accomplished by positioning the div containing the content absolutely and off the page 9999pixels.</p> <pre><code>#content { position: absolute; left: -9999px; } </code></pre> <p>At this point, I use jquery to retrieve the height of the content with the following code:</p> <pre><code>$('#content').height(); </code></pre> <p>The problem is, the number that's coming back is the incorrect size and is much smaller than the actual content. When I change the css to:</p> <pre><code>#content { position: absolute; left: 0px; } </code></pre> <p>It renders correctly. What gives?? Is there a bug I don't know about? This happens in both Chrome and Firefox.</p> <p>You can view it for yourself here <a href="http://thethechad.com/wordpress" rel="nofollow">http://thethechad.com/wordpress</a></p> <p>-- UPDATE --------------------------------------------------------------------------</p> <p>I figured out my problem. The div I was using had no specified width. When I moved it outside the flow of the document, it expanded to fill that gap, shifting the content and reducing the height of the element. I went back into my CSS and hardcoded the width and everything is working fine. I feel really dumb. I'm sure we all have those moments. Thanks so much for the help guys!</p>
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