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How can I define colors as variables in CSS?

I’m working on a CSS file that is quite long. I know that the client could ask for changes to the color scheme, and was wondering: is it possible to assign colors to variables, so that I can just change a variable to have the new color applied to all elements that use it? ...
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What's the difference between compiled and interpreted language?

...between Java and JavaScript. Would someone please help me in understanding it? 7 Answers ...
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Generate a random point within a circle (uniformly)

I need to generate a uniformly random point within a circle of radius R . 21 Answers ...
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Call Go functions from C

I am trying to create a static object written in Go to interface with a C program (say, a kernel module or something). 4 An...
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Easiest way to activate PHP and MySQL on Mac OS 10.6 (Snow Leopard), 10.7 (Lion), 10.8 (Mountain Lio

... Open a good text editor (I'd recommend TextMate, but the free TextWrangler or vi or nano will do too), and open: /etc/apache2/httpd.conf Find the line: "#LoadModule php5_module libexec/apache2/libphp5.so" And uncomment it (remove ...
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What is the difference between Trap and Interrupt?

... A trap is an exception in a user process. It's caused by division by zero or invalid memory access. It's also the usual way to invoke a kernel routine (a system call) because those run with a higher priority than user code. Handling is synchronous (so the user code i...
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Recommended Fonts for Programming? [closed]

... Either Consolas (download) or Andale Mono (download). I mostly use Andale Mono. I wrote an article about programming fonts a long time ago, I think Consolas wasn't even out yet. http://www.deadprogrammer.com/photos/fonts.gif ...
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jQuery - prevent default, then continue default

I have a form that, when submitted, I need to do some additional processing before it should submit the form. I can prevent default form submission behavior, then do my additional processing (it's basically calling Google Maps API and adding a few hidden fields to the form) -- and then I need the fo...
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.gitignore all the .DS_Store files in every folder and subfolder

I've added .DS_Store to the .gitignore file, but it seems that it is only ignoring .DS_Store in the root directory, not in every folder and subfolder. ...
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How to fix “no valid 'aps-environment' entitlement string found for application” in Xcode 4.3?

...r shop is fairly new to iOS dev, I personally am completely inexperienced with iOS dev and Xcode. I've stumbled through tens of tutorials, articles, and trouble posts from Apple and elsewhere and I feel like I might be nearly there... ...