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    <p>The <a href="https://developer.mozilla.org/En/DOM/element.style" rel="noreferrer"><code>element.style</code></a> property lets you know only the CSS properties that were defined as <em>inline</em> in that element (programmatically, or defined in the style attribute of the element), you should get the <em>computed style</em>.</p> <p>Is not so easy to do it in a cross-browser way, IE has its own way, through the <code>element.currentStyle</code> property, and the DOM Level 2 <em>standard</em> way, implemented by other browsers is through the <a href="http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSview-getComputedStyle" rel="noreferrer"><code>document.defaultView.getComputedStyle</code></a> method.</p> <p>The two ways have differences, for example, the IE <a href="http://msdn.microsoft.com/en-us/library/ms535231(VS.85).aspx" rel="noreferrer"><code>element.currentStyle</code></a> property expect that you access the CCS property names composed of two or more words in <em>camelCase</em> (e.g. <code>maxHeight</code>, <code>fontSize</code>, <code>backgroundColor</code>, etc), the standard way expects the properties with the words separated with dashes (e.g. <code>max-height</code>, <code>font-size</code>, <code>background-color</code>, etc).</p> <p>Also, the IE <code>element.currentStyle</code> will return all the sizes in the unit that they were specified, (e.g. 12pt, 50%, 5em), the standard way will compute the actual size in pixels always.</p> <p>I made some time ago a cross-browser function that allows you to get the computed styles in a cross-browser way:</p> <pre><code>function getStyle(el, styleProp) { var value, defaultView = (el.ownerDocument || document).defaultView; // W3C standard way: if (defaultView &amp;&amp; defaultView.getComputedStyle) { // sanitize property name to css notation // (hypen separated words eg. font-Size) styleProp = styleProp.replace(/([A-Z])/g, "-$1").toLowerCase(); return defaultView.getComputedStyle(el, null).getPropertyValue(styleProp); } else if (el.currentStyle) { // IE // sanitize property name to camelCase styleProp = styleProp.replace(/\-(\w)/g, function(str, letter) { return letter.toUpperCase(); }); value = el.currentStyle[styleProp]; // convert other units to pixels on IE if (/^\d+(em|pt|%|ex)?$/i.test(value)) { return (function(value) { var oldLeft = el.style.left, oldRsLeft = el.runtimeStyle.left; el.runtimeStyle.left = el.currentStyle.left; el.style.left = value || 0; value = el.style.pixelLeft + "px"; el.style.left = oldLeft; el.runtimeStyle.left = oldRsLeft; return value; })(value); } return value; } } </code></pre> <p>The above function is not perfect for some cases, for example for colors, the standard method will return colors in the <em>rgb(...)</em> notation, on IE they will return them as they were defined.</p> <p>I'm currently working on an article in the subject, you can follow the changes I make to this function <a href="http://gist.github.com/369133" rel="noreferrer">here</a>.</p>
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    1. POHow to get an HTML element's style values in javascript?
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    1. POHow to get an HTML element's style values in javascript?
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    1. CO[Deja vu](http://stackoverflow.com/questions/2531737/javascript-incapable-of-getting-elements-max-height-via-element-style-maxheight)
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    2. CO@BalusC: I think this question is more *generic*, maybe a moderator could merge them?...
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    3. COIt's a lot more complicated than I imagined it to be. Thanks a lot for the quick response. I tried looking for this but I kept getting answers for different libraries, especially jQuery. @BalusC: Thanks for the edit
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