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Centering a background image, using CSS
...er;
That should work.
If not, why not make a div with the image and use z-index to make it the background? This would be much easier to center than a background image on the body.
Other than that try:
background-position: 0 100px;/*use a pixel value that will center it*/ Or I think you can use ...
Good geometry library in python? [closed]
...hWash
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answered Jul 3 '09 at 1:31
John YJohn Y
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Fragment is not being replaced but put on top of the previous one
...wakar
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How do I perform an IF…THEN in an SQL SELECT?
...n
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answered Sep 15 '08 at 14:38
Darrel MillerDarrel Miller
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grep a file, but show several surrounding lines?
...yslav
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answered Aug 12 '08 at 17:57
Pat NotzPat Notz
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Generate a random alphanumeric string in Cocoa
...tion. Hasn't been tested.
NSString *letters = @"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
-(NSString *) randomStringWithLength: (int) len {
NSMutableString *randomString = [NSMutableString stringWithCapacity: len];
for (int i=0; i<len; i++) {
[randomSt...
Gradient borders
...
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answered Jun 22 '11 at 14:24
TonyTony
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Difference between JSON.stringify and JSON.parse
...7
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answered Jul 22 '13 at 10:49
QuentinQuentin
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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...[0-9]代表的含意与\d就是完全一致的：一位数字；同理[a-z0-9A-Z_]也完全等同于\w（如果只考虑英文的话）。
下面是一个更复杂的表达式：\(?0\d{2}[) -]?\d{8}。
“(”和“)”也是元字符，后面的分组节里会提到，所以在这里需要使用...
TypeScript sorting an array
...turn negative if the first item is smaller; positive if it it's larger, or zero if they're equal.
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