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What does the “>” (greater-than sign) CSS selector mean?

...ted directly inside a div, and not any paragraphs that are nested further within. An illustration: div > p.some_class { background: yellow; } <div> <p class="some_class">Some text here</p> <!-- Selected [1] --> <blockquote> <p class="...
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How are ssl certificates verified?

... series of steps needed to securely verify a ssl certificate? My (very limited) understanding is that when you visit an https site, the server sends a certificate to the client (the browser) and the browser gets the certificate's issuer information from that certificate, then uses that to contact t...
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Converting string into datetime

... datetime.strptime is the main routine for parsing strings into datetimes. It can handle all sorts of formats, with the format determined by a format string you give it: from datetime import datetime datetime_object = datetime.strptime('Jun 1 2005 1:33PM', '%b %d %Y %I:%M%p') The resulting date...
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what exactly is device pixel ratio?

...s length. Source: CSS Absolute Lengths This has lots of implications when it comes to web design, such as preparing high-definition image resources and carefully applying different images at different device pixel ratios. You wouldn't want to force a low-end device to download a very high resolutio...
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Choosing between std::map and std::unordered_map [duplicate]

...still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see? ...
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Regex - how to match everything except a particular pattern

How do I write a regex to match any string that doesn't meet a particular pattern? I'm faced with a situation where I have to match an (A and ~B) pattern. ...
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What is WebKit and how is it related to CSS?

More recently, I have been seeing questions with the tag "webkit". Such questions usually tend to be web-based questions relating to CSS, jQuery, layouts, cross-browers compatibility issues, etc... ...
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How to pass all arguments passed to my bash script to a function of mine? [duplicate]

...ere is an example. abc "$@" When using $@, you should (almost) always put it in double-quotes to avoid misparsing of arguments containing spaces or wildcards (see below). This works for multiple arguments. It is also portable to all POSIX-compliant shells. It is also worth nothing that $0 (general...
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How do I print a double value without scientific notation using Java?

I want to print a double value in Java without exponential form. 14 Answers 14 ...
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What is the difference between Google App Engine and Google Compute Engine?

... App Engine is a Platform-as-a-Service. It means that you simply deploy your code, and the platform does everything else for you. For example, if your app becomes very successful, App Engine will automatically create more instances to handle the increased volume. ...