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POmake a css file create on the fly and dynamicly
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  1. POmake a css file create on the fly and dynamicly
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    copied!<p>There are many situations when you have to create a css file dynamically.<br> For example you may want to change the font family to something base on the parameter in the request</p> <p>You can make the css build dynamically base on a parameter pass to it, and make a css file to a dynamic asp, jsp, php ...</p> <p>For example in java:</p> <pre><code>&lt;link href="MainCss.jsp?param=someFont" type="text/css" rel="stylesheet"&gt; </code></pre> <p>Then is the MainCss.jsp</p> <pre><code>body { font-size:100%; background:#fff; &lt;%if ( request.getParameter("param") == "someFon" )%&gt; font-family:"Tahoma"; &lt;%else%&gt; font-family:"Verdana"; } </code></pre> <p>I have been told that there are many disadvantages in this solution:</p> <ul> <li>It does not allow caching of the CSS files on the server and client</li> <li>It makes it more difficult to understand and maintain the pages</li> <li>Each time your server will serves a CSS page, it will have to run a few tens of thousands of additional CPU cycles, compared to having the CSS files as purestatic documents. </li> </ul> <p>They suggestion seems to be acceptable!</p> <p>But, I keep looking around the web and find many sites which somehow do something like above: ebay.com:</p> <pre><code>&lt;link href="http://gh.ebaystatic.com/header/css/all.min?combo=11&amp;ds=3&amp;siteid=0" type="text/css" rel="stylesheet"&gt; </code></pre> <p>wikipedia.org</p> <pre><code>&lt;link rel="stylesheet" href="//bits.wikimedia.org/en.wikipedia.org/load.php?debug=false&amp;amp;lang=en&amp;amp;modules=ext.gad" /&gt; </code></pre> <p>They have told me that these site also use pure css and the <code>load.php?debuge=false</code>... is only a css file selector and will select a pure css file from harddisk and send it to the client.</p> <p>Is this technique correct? Has any one had any experience with my problem?</p>
 

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