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    <p>As you noted, YUI has the StyleSheet utility <a href="http://developer.yahoo.com/yui/3/stylesheet/" rel="nofollow">http://developer.yahoo.com/yui/3/stylesheet/</a></p> <p>Example:</p> <pre><code>var sheet = new Y.StyleSheet(styleNode); sheet.set('.hover, .foo:hover', { background: 'red', color: '#fff' }); </code></pre> <p>It also supports creating stylesheets from scratch by passing the constructor a string of css rules.</p> <p>Note that the same origin policy prevents accessing the rules of remotely sourced link nodes.</p> <p>It doesn't yet support accessing the rules as an object tree or accessing specific properties of rules. It does support removing rules or properties of rules, though. Today, the best you can do for working with the rules as objects would be something like</p> <pre><code>var style = sheet.getCssText('.foo'), tmp = document.createElement('div'); tmp.style.cssText = sheet.getCssText('.foo'); if (tmp.style.display) { // does the rule include a setting for display ... } </code></pre> <p>Since messing with stylesheets at runtime is pretty rarely the right solution, the utility hasn't had a lot of developer focus for adding features. Feature requests are welcome, of course.</p>
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    1. POWhich JavaScript-framework can search CSS stylesheet rules and edit their properties?
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    1. USLuke
    1. USLuke
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      1. VTUpMod
    1. COWe have 2011, flying cars and spaceships. And there is no way to dynamically change a stylesheet? – No, at least not with your framework of choice. – How would you manually change a style of your HTML from blue to green? By adding “style” to all affected elements? No, of course not. You would go for a single point edit in the style sheet. But if you do it from a script, you call it “messing”. Why? – In my eyes it is the only right way to do it: change it where it needs to be changed, not overwriting it at ten different places and hoping it won’t break...
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      1. USRobert Siemer
    2. COElement style changes trigger a repaint or reflow that the browser tries very hard to limit the scope of. It also batches reflows, so changing ten element styles will only trigger one reflow or repaint if done properly, and the amount of the page that the repaint/reflow affects will be minimized. Any change to the stylesheet will trigger a full page reflow, the worst thing you can do for a responsive UI. Apps should be built to support a change of blue to green using classes and cascading rules.
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      1. USLuke
    3. COAlso, cross browser stylesheet API support has a rocky history to say the least, whereas element style and class modification is pretty rock solid. I sympathize with your want of a more convenient API to manipulate stylesheets, but that doesn't make it the right tool for the job. And fwiw, YUI's StyleSheet util can edit multi-selector rules.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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