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Why does this CSS margin-top style not work?

I try to add margin values on a div inside another div. All works fine except the top value, it seems to be ignored. But why? ...
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HTTP 404 Page Not Found in Web Api hosted in IIS 7.5

I have a Web Api application. It works perfectly well when I tested it using the VS 2010 debugging dev server. But I now deployed it to IIS 7.5 and I am getting a HTTP 404 error when trying to access the application. ...
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How to remove the lines which appear on file B from another file A?

I have a large file A (consisting of emails), one line for each mail. I also have another file B that contains another set of mails. ...
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How can i query for null values in entity framework?

I want to execute a query like this 14 Answers 14 ...
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What is the proper way to test if a parameter is empty in a batch file?

I need to test if a variable is set or not. I've tried several techniques but they seem to fail whenever %1 is surrounded by quotes such as the case when %1 is "c:\some path with spaces" . ...
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Dealing with nginx 400 “The plain HTTP request was sent to HTTPS port” error

...nd passenger/nginx. I'm trying to get it to respond to both http and https calls. The problem is, when both are defined in the server block https calls are responded to normally but http yields a 400 "The plain HTTP request was sent to HTTPS port" error. This is for a static page so I'm guessing Sin...
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How to show the “Are you sure you want to navigate away from this page?” when changes committed?

Here in stackoverflow, if you started to make changes then you attempt to navigate away from the page, a javascript confirm button shows up and asks: "Are you sure you want to navigate away from this page?" blee blah bloo... ...
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Getting only response header from HTTP POST using curl

One can request only the headers using HTTP HEAD, as option -I in curl(1) . 8 Answers ...
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INotifyPropertyChanged vs. DependencyProperty in ViewModel

When implementing the ViewModel in a Model-View-ViewModel architecture WPF application there seem to be two major choices how to make it databindable. I have seen implementations that use DependencyProperty for properties the View is going to bind against and I have seen the ViewModel implementing...
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Disabling swap files creation in vim

Is there a way to disable .swp files creation in vim? or at least create them all in one place so I can find and delete them easily. ...