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Can I set an opacity only to the background image of a div?

...ndex: 1; } .myDiv .bg { position: absolute; z-index: -1; top: 0; bottom: 0; left: 0; right: 0; background: url(test.jpg) center center; opacity: .4; width: 100%; height: 100%; } See test case on jsFiddle :before and ::before pseudo-element Another trick i...
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figure of imshow() is too small

...'t need an equal aspect you can set aspect to auto imshow(random.rand(8, 90), interpolation='nearest', aspect='auto') which gives the following figure If you want an equal aspect ratio you have to adapt your figsize according to the aspect fig, ax = subplots(figsize=(18, 2)) ax.imshow(random....
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Bash Script: count unique lines in file

... 306 You can use the uniq command to get counts of sorted repeated lines: sort ips.txt | uniq -c ...
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Creating JS object with Object.create(null)?

... 200 They are not equivalent. {}.constructor.prototype == Object.prototype while Object.create(null)...
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Are default enum values in C the same for all compilers?

...ng an enum as shown below, do all C compilers set the default values as x=0 , y=1 , and z=2 on both Linux and Windows systems? ...
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How to round the minute of a datetime object

...his will get the 'floor' of a datetime object stored in tm rounded to the 10 minute mark before tm. tm = tm - datetime.timedelta(minutes=tm.minute % 10, seconds=tm.second, microseconds=tm.microsecond) If you want classic rounding to the ne...
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How to convert list of tuples to multiple lists?

... answered Nov 10 '11 at 15:03 Sven MarnachSven Marnach 446k100100 gold badges833833 silver badges753753 bronze badges ...
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Simplest code for array intersection in javascript

... Ry-♦ 192k4444 gold badges392392 silver badges403403 bronze badges answered Dec 11 '09 at 3:08 Anon.Anon. 49.5k88 gold badges...
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What's the UIScrollView contentInset property for?

...enclosing scroll view. Obj-C aScrollView.contentInset = UIEdgeInsetsMake(0, 0, 0, 7.0); Swift 5.0 aScrollView.contentInset = UIEdgeInsets(top: 0, left: 0, bottom: 0, right: 7.0) Here's a good iOS Reference Library article on scroll views that has an informative screenshot (fig 1-3) - I'll rep...
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Selecting a row of pandas series/dataframe by integer index

... echoing @HYRY, see the new docs in 0.11 http://pandas.pydata.org/pandas-docs/stable/indexing.html Here we have new operators, .iloc to explicity support only integer indexing, and .loc to explicity support only label indexing e.g. imagine this scenario In ...