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Black transparent overlay on image hover with only CSS?

... the img element itself, see. .image { position: relative; width: 400px; height: 400px; } Give the child img element a width of 100% of the parent and add vertical-align:top to fix the default baseline alignment issues. .image img { width: 100%; vertical-align: top; } As for th...
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Random color generator

... 1062 Use getRandomColor() in place of "#0000FF": function getRandomColor() { var letters = ...
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How do you plot bar charts in gnuplot?

... Simple bar graph: set boxwidth 0.5 set style fill solid plot "data.dat" using 1:3:xtic(2) with boxes data.dat: 0 label 100 1 label2 450 2 "bar label" 75 If you want to style your bars differently, you can do something like: set style lin...
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Matplotlib tight_layout() doesn't take into account figure suptitle

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How to print binary tree diagram?

...l - level; int endgeLines = (int) Math.pow(2, (Math.max(floor - 1, 0))); int firstSpaces = (int) Math.pow(2, (floor)) - 1; int betweenSpaces = (int) Math.pow(2, (floor + 1)) - 1; BTreePrinter.printWhitespaces(firstSpaces); List<Node<T>> newNodes ...
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In C++, is it still bad practice to return a vector from a function?

...arrays—in many programming languages. Is this style now acceptable in C++0x if the class has a move constructor, or do C++ programmers consider it weird/ugly/abomination? ...
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How to Rotate a UIImage 90 degrees?

...rientationUp (portrait) that I would like to rotate counter-clockwise by 90 degrees (to landscape). I don't want to use a CGAffineTransform . I want the pixels of the UIImage to actually shift position. I am using a block of code (shown below) originally intended to resize a UIImage to do this...
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Why are elementwise additions much faster in separate loops than in a combined loop?

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Zero-pad digits in string

I need to cast single figures (1 to 9) to (01 to 09). I can think of a way but its big and ugly and cumbersome. I'm sure there must be some concise way. Any Suggestions ...
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Could not load file or assembly 'Newtonsoft.Json' or one of its dependencies. Manifest definition do

...embly> <assemblyIdentity name="Newtonsoft.Json" publicKeyToken="30ad4fe6b2a6aeed" culture="neutral" /> <bindingRedirect oldVersion="0.0.0.0-6.0.0.0" newVersion="6.0.0.0" /> </dependentAssembly> If you want to ensure all your Newtonsoft.Json packages are the same vers...