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What does auto do in margin:0 auto?

What does auto do in margin:0 auto; ? 7 Answers 7 ...
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Drawing a dot on HTML5 canvas [duplicate]

...d it. Just draw a rectangle with a width and height of one: ctx.fillRect(10,10,1,1); // fill in the pixel at (10,10) share | improve this answer | follow | ...
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Undoing a 'git push'

...commit:branch_name or in your case git push -f origin cc4b63bebb6:alpha-0.3.0 You may have receive.denyNonFastForwards set on the remote repository. If this is the case, then you will get an error which includes the phrase [remote rejected]. In this scenario, you will have to delete and recrea...
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Hadoop “Unable to load native-hadoop library for your platform” warning

... 230 I assume you're running Hadoop on 64bit CentOS. The reason you saw that warning is the native Ha...
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HTML5 Pre-resize images before uploading

... 10 Answers 10 Active ...
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How to center align the cells of a UICollectionView?

... 80 I think you can achieve the single line look by implementing something like this: - (UIEdgeInse...
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What does `void 0` mean? [duplicate]

... 1024 What does void 0 mean? void[MDN] is a prefix keyword that takes one argument and always retur...
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Why is SSE scalar sqrt(x) slower than rsqrt(x) * x?

... | edited Oct 7 '09 at 0:02 answered Oct 6 '09 at 23:52 ...
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How to avoid the “divide by zero” error in SQL?

... by zero" error we have programmed it like this: Select Case when divisor=0 then null Else dividend / divisor End ,,, But here is a much nicer way of doing it: Select dividend / NULLIF(divisor, 0) ... Now the only problem is to remember the NullIf bit, if I use the "/" key. ...
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In a PHP project, what patterns exist to store, access and organize helper objects? [closed]

How do you organize and manage your helper objects like the database engine, user notification, error handling and so on in a PHP based, object oriented project? ...