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CSS selector for first element with class

I have a bunch of elements with a class name red , but I can't seem to select the first element with the class="red" using the following CSS rule: ...
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If Python is interpreted, what are .pyc files?

...ed by Python's virtual machine. Python's documentation explains the definition like this: Python is an interpreted language, as opposed to a compiled one, though the distinction can be blurry because of the presence of the bytecode compiler. This means that source files can be run di...
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What does the “===” operator do in Ruby? [duplicate]

I've seen it used a few times lately but can't figure out what it does. Can anyone illustrate how it works? 3 Answers ...
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Difference between sh and bash

When writing shell programs, we often use /bin/sh and /bin/bash . I usually use bash , but I don't know what's the difference between them. ...
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Why is (object)0 == (object)0 different from ((object)0).Equals((object)0)?

...y different methods. The == case will bind to the static reference equality operator. There are 2 independent boxed int values created hence they are not the same reference. In the second case you bind to the instance method Object.Equals. This is a virtual method which will filter down to Int...
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Is it possible to specify a different ssh port when using rsync?

... Although this isn't the most obvious answer it is still a very good answer. It's worth using SSH config for any host you connect to more than once or twice as it'll save you a lot of thinking and typing. – John Hunt Apr 28 '14 at ...
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What does void mean in C, C++, and C#?

...ing to get the fundamentals on where the term " void " comes from, and why it is called void. The intention of the question is to assist someone who has no C experience, and is suddenly looking at a C-based codebase. ...
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What is the difference between Bower and npm?

...ge managers have many downsides. You just have to pick which you can live with. History npm started out managing node.js modules (that's why packages go into node_modules by default), but it works for the front-end too when combined with Browserify or webpack. Bower is created solely for the fron...
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Best exception for an invalid generic type argument

I'm currently writing some code for UnconstrainedMelody which has generic methods to do with enums. 11 Answers ...
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Why does C# not provide the C++ style 'friend' keyword? [closed]

The C++ friend keyword allows a class A to designate class B as its friend. This allows Class B to access the private / protected members of class A . ...