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simulate background-size:cover on or

...n-height: 56.25vw; /* 100 * 9 / 16 */ } If the video's parent element is set to cover the entire page (such as position: fixed; width: 100%; height: 100vh;), then the video will, too. If you want the video centered as well, you can use the surefire centering approach: /* merge with above css */ ...
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Android adb “Unable to open sync connection!”

... Settings -> Applications -> Development -> USB debugging – Thunder Rabbit Jul 7 '11 at 0:58 1 ...
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What .NET collection provides the fastest search

... In the most general case, consider System.Collections.Generic.HashSet as your default "Contains" workhorse data structure, because it takes constant time to evaluate Contains. The actual answer to "What is the fastest searchable collection" depends on your specific data size, ordered-ness...
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dynamically add and remove view to viewpager

...tion) { // ViewPager doesn't have a delete method; the closest is to set the adapter // again. When doing so, it deletes all its views. Then we can delete the view // from from the adapter and finally set the adapter to the pager again. Note // that we set the adapter to null be...
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How should the ViewModel close the form?

...otifyPropertyChanged, and voilà, your ViewModel can close the Window (and set its DialogResult) just by setting a property. MVVM as it should be. Here's the code for DialogCloser: using System.Windows; namespace ExCastle.Wpf { public static class DialogCloser { public static read...
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How can I get a channel ID from YouTube?

...of your YouTube Channel ID or your YouTube account ID, access the advanced settings at your settings page And if you want to know the YouTube Channel ID for any channel, you could use the solution @mjlescano gave. https://www.googleapis.com/youtube/v3/channels?key={YOUR_API_KEY}&forUsername={U...
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Can I concatenate multiple MySQL rows into one field?

...byte limit on the result. To solve this, run this query before your query: SET group_concat_max_len = 2048; Of course, you can change 2048 according to your needs. To calculate and assign the value: SET group_concat_max_len = CAST( (SELECT SUM(LENGTH(hobbies)) + COUNT(*) * LENGTH(', ') FROM...
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How to disable an input type=text?

... To get the "readonly" input field to LOOK like the "disabled" field, set 'style="color: grey; background-color: #F0F0F0;"'. (this was a comment to this answer) – Jake Toronto Nov 11 '14 at 20:57 ...
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Checking if an Android application is running in the background

...s, but you also don't have to modify every Activity in your application to set/unset something in onResumed()/onPaused(). It's just a few lines of code that's self contained, and it works throughout your whole application. Plus, there are no funky permissions required either. MyLifecycleHandler.jav...
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What is the minimum valid JSON?

...d at the top: RFC-4627: No. A JSON text is a sequence of tokens. The set of tokens includes six structural characters, strings, numbers, and three literal names. A JSON text is a serialized object or array. JSON-text = object / array Note that RFC-4627 was marked "info...