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How can I display just a portion of an image in HTML/CSS?

Let's say I want a way to display just the the center 50x50px of an image that's 250x250px in HTML. How can I do that. Also, is there a way to do this for css:url() references? ...
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Longest line in a file

... Using wc (GNU coreutils) 7.4: wc -L filename gives: 101 filename share | improve this answer | follow | ...
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What is the significance of load factor in HashMap?

...ize and load factor . I went through the Java documentation and it says 0.75f is the initial load factor. But I can't find the actual use of it. ...
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What is the “main file” property when doing bower init?

... 60 According to the Bower.io documentation main Recommended Type: String or Array of ...
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How to print to console in pytest?

... that particular test. For example, def test_good(): for i in range(1000): print(i) def test_bad(): print('this should fail!') assert False Results in the following output: >>> py.test tmp.py ============================= test session starts =======================...
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How can I check whether a numpy array is empty or not?

...e a look at the .size attribute. It is defined as an integer, and is zero (0) when there are no elements in the array: import numpy as np a = np.array([]) if a.size == 0: # Do something when `a` is empty share ...
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How do I profile memory usage in Python?

...ex Count % Size % Cumulative % Kind (class / dict of class) 0 25773 53 1612820 49 1612820 49 str 1 11699 24 483960 15 2096780 64 tuple 2 174 0 241584 7 2338364 72 dict of module 3 3478 7 222592 7 2560956 78 types.CodeType 4 3...
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Is \d not supported by grep's basic expressions?

... rogerdpack 46.3k3030 gold badges200200 silver badges315315 bronze badges answered Aug 1 '11 at 16:08 DaenythDaenyth ...
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Depend on a branch or tag using a git URL in a package.json?

... 580 From the npm docs: git://github.com/<user>/<project>.git#<branch> git://gith...
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C#: Looping through lines of multiline string

... answered Sep 30 '09 at 19:41 Jon SkeetJon Skeet 1211k772772 gold badges85588558 silver badges88218821 bronze badges ...