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Creating a CSS3 box-shadow on all sides but one

I've got a tabbed navigation bar where I'd like the open tab to have a shadow to set it apart from the other tabs. I'd also like the whole tab section to have a single shadow (see bottom horizontal line) going up, shading the bottom of all tabs except for the open one. ...
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How to add “on delete cascade” constraints?

...ostgreSQL 8 is it possible to add ON DELETE CASCADES to the both foreign keys in the following table without dropping the latter? ...
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How can I output UTF-8 from Perl?

...) statement: binmode(STDOUT, ":utf8"); See if that helps. That should make STDOUT output in UTF-8 instead of ordinary ASCII. share | improve this answer | follow ...
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When to prefer JSON over XML?

...eed message validation You're using XSLT Your messages include a lot of marked-up text You need to interoperate with environments that don't support JSON Favor JSON over XML when all of these are true: Messages don't need to be validated, or validating their deserialization is simple You're not ...
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Does the order of LINQ functions matter?

...d on the LINQ provider in use. For LINQ to Objects, that could certainly make a huge difference. Assume we've actually got: var query = myCollection.OrderBy(item => item.CreatedDate) .Where(item => item.Code > 3); var result = query.Last(); That requires the whol...
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Can I use break to exit multiple nested 'for' loops?

Is it possible to use the break function to exit several nested for loops? 20 Answers ...
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How to round a number to significant figures in Python

...d_to_1(4) 4.0 >>> round_to_1(19) 20.0 You'll probably have to take care of turning float to integer if it's bigger than 1. share | improve this answer | follow ...
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Windows batch: formatted date into variable

... You can get the current date in a locale-agnostic way using for /f "skip=1" %%x in ('wmic os get localdatetime') do if not defined MyDate set MyDate=%%x Then you can extract the individual parts using substrings: set today=%MyDate:~0,4%-%MyDate:~4,2%-%MyDate:~6,2% Another way, where you g...
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Can't get rid of header X-Powered-By:Express

... Jacob Marble 23.5k1717 gold badges5959 silver badges7474 bronze badges answered May 3 '11 at 9:42 GiacomoGiacomo ...
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EC2 instance types's exact network performance?

I cannot find exact network performance details for different EC2 instance types on Amazon. Instead, they are only saying: ...