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How can I fill a div with an image while keeping it proportional?

... If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you. .fill { display: flex; justify-content: center; align-it...
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What is the good python3 equivalent for auto tuple unpacking in lambda?

...just to unfold the parameters - but that would be at once more inefficient and harder to read than your two suggestions: min(points, key=lambda p: (lambda x,y: (x*x + y*y))(*p)) update Python 3.8 As of now, Python 3.8 alpha1 is available, and PEP 572- assignment expressions are implemented. So,...
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Example for boost shared_mutex (multiple reads/one write)?

I have a multithreaded app that has to read some data often, and occasionally that data is updated. Right now a mutex keeps access to that data safe, but it's expensive because I would like multiple threads to be able to read simultaneously, and only lock them out when an update is needed (the updat...
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Do you need to close meta and link tags in HTML?

I was just reading somebody's HTML who never closed meta and link tags in the HTML head section. The code worked fine; is closing these tags optional? ...
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How do I create a SQL table under a different schema?

... Right-click on the tables node and choose New Table... With the table designer open, open the properties window (view -> Properties Window). You can change the schema that the table will be made in by choosing a schema in the properties window. ...
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Is there a way to disable the Title and Subtitle in Highcharts?

... Could you take a look at this for me? I've done all the suggestions here and there is still a huge white space, (see the print button floating in space in the top right?) goo.gl/jHR5l – D3Chiq Apr 10 '13 at 16:21 ...
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How do you get the footer to stay at the bottom of a Web page?

I have a simple 2-column layout with a footer that clears both the right and left div in my markup. My problem is that I can't get the footer to stay at the bottom of the page in all browsers. It works if the content pushes the footer down, but that's not always the case. ...
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What is the default form HTTP method?

...8n, %events -- action %URI; #REQUIRED -- server-side form handler -- method (GET|POST) GET -- HTTP method used to submit the form-- enctype %ContentType; "application/x-www-form-urlencoded" accept %ContentTypes; #IMPLIED -- list of MIME types for file ...
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string.ToLower() and string.ToLowerInvariant()

What's the difference and when to use what? What's the risk if I always use ToLower() and what's the risk if I always use ToLowerInvariant() ? ...
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scp or sftp copy multiple files with single command

...te server in different directories. For example, I want to run these 4 commands at once. 15 Answers ...