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How do I fit an image (img) inside a div and keep the aspect ratio?

I have a 48x48 div and inside it there is an img element, I want to fit it into the div without losing any part, in the mean time the ratio is kept, is it achievable using html and css? ...
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CSS Div stretch 100% page height

I have a navigation bar on the left hand side of my page, and I want it to stretch to 100% of the page height. Not just the height of the viewport, but including the areas hidden until you scroll. I don't want to use javascript to accomplish this. ...
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Does :before not work on img elements?

...efore selector to place an image over another image, but I'm finding that it simply doesn't work to place an image before an img element, only some other element. Specifically, my styles are: ...
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While loop to test if a file exists in bash

... working on a shell script that does certain changes on a txt file only if it does exist, however this test loop doesn't work, I wonder why? Thank you! ...
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Eclipse Build Path Nesting Errors

...lem even when I created a fresh project. I was creating the Java project within Eclipse, then mavenize it, then going into java build path properties removing src/ and adding src/main/java and src/test/java. When I run Maven update it used to give nested path error. Then I finally realized -becaus...
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What is the difference between atomic / volatile / synchronized?

...e int counter; public int getNextUniqueIndex() { return counter++; } It basically reads value from memory, increments it and puts back to memory. This works in single thread but nowadays, in the era of multi-core, multi-CPU, multi-level caches it won't work correctly. First of all it introduce...
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Variable is accessed within inner class. Needs to be declared final

... If you don't want to make it final, you can always just make it a global variable. share | improve this answer | follow ...
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Entity Framework and SQL Server View

... We had the same problem and this is the solution: To force entity framework to use a column as a primary key, use ISNULL. To force entity framework not to use a column as a primary key, use NULLIF. An easy way to apply this is to wrap the select statement of your view in another selec...
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How to find first element of array matching a boolean condition in JavaScript?

.../elegant way to find the first element of a JS array matching a given condition. A C# equivalent would be List.Find . 12 ...
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Is an array name a pointer?

...contains space for seven integers, and you can put a value in one of them with an assignment, like this: a[3] = 9; Here is a pointer: int *p; p doesn't contain any spaces for integers, but it can point to a space for an integer. We can, for example, set it to point to one of the places in the ...