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Position a CSS background image x pixels from the right?

... background-position: right 30px center; It works in most browsers. See: http://caniuse.com/#feat=css-background-offsets for full list. More information: http://www.w3.org/TR/css3-background/#the-background-position ...
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Use PHP to create, edit and delete crontab jobs?

...user] [ -e | -l | -r ] (default operation is replace, per 1003.2) -e (edit user's crontab) -l (list user's crontab) -r (delete user's crontab) -i (prompt before deleting user's crontab) So, $output = shell_exec('crontab -l'); fil...
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What is the purpose of a question mark after a type (for example: int? myVariable)?

... | edited Jan 17 '19 at 0:59 Dawood ibn Kareem 66.1k1212 gold badges8080 silver badges9797 bronze badges ...
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Copy entire contents of a directory to another using php

... 240 It seems that copy only handle single files. Here is a function for copying recursively I found ...
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How to get the first non-null value in Java?

... 108 No, there isn't. The closest you can get is: public static <T> T coalesce(T ...items) {...
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Logging uncaught exceptions in Python

... 10 Answers 10 Active ...
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Why do I get a “Null value was assigned to a property of primitive type setter of” error message whe

... edited May 23 '17 at 12:10 Community♦ 111 silver badge answered Jul 1 '10 at 1:33 ...
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C# getting its own class name

... | edited Jan 21 '10 at 21:32 Andrew Hare 310k6363 gold badges611611 silver badges614614 bronze badges ...
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Is there a method to generate a UUID with go language

... u[8] = (u[8] | 0x80) & 0xBF // what's the purpose ? u[6] = (u[6] | 0x40) & 0x4F // what's the purpose ? These lines clamp the values of byte 6 and 8 to a specific range. rand.Read returns random bytes in the range 0-255, which are...
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How do lexical closures work?

... answered Oct 24 '08 at 14:47 ClaudiuClaudiu 200k144144 gold badges432432 silver badges637637 bronze badges ...