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Vertically centering a div inside another div [duplicate]

...align-items: center; } Demo More examples & possibilities: Compare all the methods on one pages share | improve this answer | follow | ...
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How to ISO 8601 format a Date with Timezone Offset in JavaScript?

... The below should work properly, and for all browsers (thanks to @MattJohnson for the tip) Date.prototype.toIsoString = function() { var tzo = -this.getTimezoneOffset(), dif = tzo >= 0 ? '+' : '-', pad = function(num) { va...
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How do you automatically set the focus to a textbox when a web page loads?

How do you automatically set the focus to a textbox when a web page loads? 13 Answers ...
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Can't Find Theme.AppCompat.Light for New Android ActionBar Support

...;Android. In the section library "Add" and choose "AppCompat" That is all! Note: if you are using "android:showAsAction" in menu item, you need to change prefix android as in the example http://developer.android.com/guide/topics/ui/actionbar.html ...
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Where is the itoa function in Linux?

itoa() is a really handy function to convert a number to a string. Linux does not seem to have itoa() , is there an equivalent function or do I have to use sprintf(str, "%d", num) ? ...
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How to remove a key from a Python dictionary?

...osentino No, ignoring the return value of a function is not inefficient at all. Quite the opposite – this solution is much faster than the try/except solution if the key does not exist. You might find one or the other easier to read, which is fine. Both are idiomatic Python, so choose whatever ...
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Reading ePub format

...k like (a subset of XHTML 1.1 + CSS) one to define a "manifest" that lists all of the files that make up that content (OPF, which is an XML file) one to define how everything is packaged up (OEBPS: a zip file of everything in the manifest plus a few extra files) The specs look a bit daunting but a...
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How to prevent ENTER keypress to submit a web form?

...mitting the form. It had a button to perform a internal search, and it actually improves usability. – Foxinni Aug 30 '12 at 15:46 1 ...
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What is a predicate in c#? [duplicate]

...cate<T> is a functional construct providing a convenient way of basically testing if something is true of a given T object. For example suppose I have a class: class Person { public string Name { get; set; } public int Age { get; set; } } Now let's say I have a List<Person> p...
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Fill remaining vertical space with CSS using display:flex

... <header> header: sized to content <br/>(but is it really?) </header> <div> main content: fills remaining space<br> x <br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br>x<br> <!-- unc...