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CSS horizontal centering of a fixed div?

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Why doesn't the height of a container element increase if it contains floated elements?

...r them, container height won't increase... I'll show you visually: More Explanation: <div> <div style="float: left;"></div> <div style="width: 15px;"></div> <!-- This will shift besides the top div. Why? Because o...
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System.Net.WebException HTTP status code

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Why does Clojure have “keywords” in addition to “symbols”?

... It seems keywords are more useful as keys in hashmaps etc as they don't change once evaluated: (eval (eval ':a)) vs (eval (eval ''a)). Are there other advantages? Performance wise, they are identical? – kristianlm ...
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How do you pass a function as a parameter in C?

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Does reading an entire file leave the file handle open?

...).read() is the file handle left open until the script exits? Is there a more concise method to read a whole file? 4 Ans...
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Calculating moving average

...'t see a way to do "left" alignment or calculate with "partial" data (2 or more values)? – Matt L. Sep 18 '17 at 20:32 ...
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Git error when trying to push — pre-receive hook declined

...like you've got a problem with your setup on the server-side. Please share more information then. share | improve this answer | follow | ...
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Reshaping data.frame from wide to long format

... an extended & improved implementation). melt from data.table has also more parameters that the melt-function from reshape2. You can for example also specify the name of the variable-column: library(data.table) long <- melt(setDT(wide), id.vars = c("Code","Country"), variable.name = "year") ...
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What does the Reflect object do in JavaScript?

...ed out by 7th's answer, now that ES6 (ECMAScript 2015) has been finalized, more appropriate documentation is now available: ES6 spec, Reflection MDN Reflect (including details and examples to all of its methods) Original answer (for (historic) understanding and extra examples): The Reflection ...