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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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How does Python 2 compare string and int? Why do lists compare as greater than numbers, and tuples g

... 209 From the python 2 manual: CPython implementation detail: Objects of different types except ...
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Javascript Reduce an empty array

..., currentValue){ return Number(previousValue) + Number(currentValue); }, 0); or using ES6: [].reduce( (previousValue, currentValue) => previousValue + currentValue, 0); share | improve this...
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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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How to center horizontally div inside parent div

...sides to automatically fit. This centers the div. div#child { margin: 0 auto; } share | improve this answer | follow | ...
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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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jQuery UI Sortable Position

... answered Jun 6 '10 at 13:31 Nick Craver♦Nick Craver 580k125125 gold badges12551255 silver badges11351135 bronze badges ...
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What do 'real', 'user' and 'sys' mean in the output of time(1)?

... 2130 Real, User and Sys process time statistics One of these things is not like the other. Real ref...
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Why were pandas merges in python faster than data.table merges in R in 2012?

... 120 It looks like Wes may have discovered a known issue in data.table when the number of unique stri...
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Quick search on filename

... Tom DevTom Dev 2,92011 gold badge1010 silver badges66 bronze badges add a commen...