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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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Track the time a command takes in UNIX/LINUX?

In UNIX/LINUX, is there an easy way to track the time a command takes? 3 Answers 3 ...
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Error :Request header field Content-Type is not allowed by Access-Control-Allow-Headers

...s-support-in-asp-net-web-api-rc-version.aspx". It is working successfully, and i post data from client side to server successfully. ...
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How to programmatically send SMS on the iPhone?

Does anybody know if it's possible, and how, to programmatically send a SMS from the iPhone , with the official SDK / Cocoa Touch? ...
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How to discard all changes made to a branch?

I'm working in a branch (i.e. design ) and I've made a number of changes, but I need to discard them all and reset it to match the repository version. I thought git checkout design would do it, but it just tells me I'm already in branch design and that I have 3 modified files. ...
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Uses of content-disposition in an HTTP response header

...ity concerns. The authority on the content-disposition header is RFC 1806 and RFC 2183. People have also devised content-disposition hacking. It is important to note that the content-disposition header is not part of the HTTP 1.1 standard. The HTTP 1.1 Standard (RFC 2616) also mentions the possibl...
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Create a variable name with “paste” in R?

... In my case function eval() works very good. Below I generate 10 variables and assign them 10 values. lhs <- rnorm(10) rhs <- paste("perf.a", 1:10, "<-", lhs, sep="") eval(parse(text=rhs)) share | ...
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How to provide animation when calling another activity in Android?

I have two Activities A and B. I want to have the shrink Animation when Activity A calls B and maximize animation when Activity B calls A. I don't need the animation xml files for this. ...
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Breaking out of nested loops [duplicate]

...ops than throwing an exception? (In Perl, you can give labels to each loop and at least continue an outer loop.) 8 Answer...
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What is the difference between List and ArrayList? [duplicate]

I've been using ArrayList recently in my android project at the office and I'm a bit confused between List and ArrayList, what is the difference of the two and what should I use? ...