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Using only CSS, show div on hover over

...one hovers over an <a> element, but I would like to do this in CSS and not JavaScript. Do you know how this can be achieved? ...
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Parsing IPv6 extension headers containing unknown extensions

I'm writing a very simple net filter, and getting to where I want to parse IPv6 headers to match things like ICMPv6 types, TCP/UDP port numbers, etc. ...
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Turn off auto formatting in Visual Studio

...to go to 'Tools > Options > Text Editor > Basic > VB Specific' and turn 'Pretty Listing' OFF. Note - in Visual Studio 2015 this can be found at: Tools > Options > Text Editor > Basic > Advanced sh...
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Remove specific characters from a string in Python

...nfusing to experienced pythonators, who will see a doubly-nested structure and think for a moment that something more complicated is going on. Starting in Python 2.6 and newer Python 2.x versions *, you can instead use str.translate, (but read on for Python 3 differences): line = line.translate(No...
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HTML Input=“file” Accept Attribute File Type (CSV)

... Well this is embarrassing... I found the solution I was looking for and it couldn't be simpler. I used the following code to get the desired result. Hope this helps someone in the future. Thanks everyone for your help. <input id="fileSelect" type="file" accept=".csv, application/vnd.open...
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Pandas - Get first row value of a given column

...2 There is a difference between df_test['Btime'].iloc[0] (recommended) and df_test.iloc[0]['Btime']: DataFrames store data in column-based blocks (where each block has a single dtype). If you select by column first, a view can be returned (which is quicker than returning a copy) and the origina...
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How to generate a random alpha-numeric string?

I've been looking for a simple Java algorithm to generate a pseudo-random alpha-numeric string. In my situation it would be used as a unique session/key identifier that would "likely" be unique over 500K+ generation (my needs don't really require anything much more sophisticated). ...
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find -exec cmd {} + vs | xargs

Which one is more efficient over a very large set of files and should be used? 3 Answers ...
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Should try…catch go inside or outside a loop?

...w which way the performance would be affected, I guess were back to try-it-and-test (as always). – Jeffrey L Whitledge Sep 27 '08 at 18:35 1 ...
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How to run JUnit tests with Gradle?

...dd a junit 4 dependency correctly? Assuming you're resolving against a standard Maven (or equivalent) repo: dependencies { ... testCompile "junit:junit:4.11" // Or whatever version } Run those tests in the folders of tests/model? You define your test source set the same way: sour...