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How do I give text or an image a transparent background using CSS?
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.background {
position: absolute;
top: 0px;
left: 0px;
width: 100%;
height: 100%;
background-color: Black;
z-index: 1;
/* These three lines are for transparency in all browsers. */
-ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=50)";
filter: alpha(opacity...
Is JavaScript guaranteed to be single-threaded?
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l.value+= 'log in\n';
l.focus();
l.value+= 'log out\n';
}, 100);
i.focus();
<textarea id="log" rows="20" cols="40"></textarea>
<input id="inp">
Results in log in, blur, log out on all except IE. These events don't just fire because you called focus() direc...
Java HTTPS client certificate authentication
...sl x509 -req -days 365 -in server.csr -CA ca.crt -CAkey ca.key -set_serial 100 -out server.crt
and
$ openssl genrsa -des3 -out client.key 4096
$ openssl req -new -key client.key -out client.csr
$ openssl x509 -req -days 365 -in client.csr -CA ca.crt -CAkey ca.key -set_serial 101 -out client.crt
...
How do CUDA blocks/warps/threads map onto CUDA cores?
...GTX560 a rough estimate would be IssuedIPC / MaxIPC.
For MaxIPC assume
GF100 (GTX480) is 2
GF10x (GTX560) is 4 but target is 3 is a better target.
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Making WPF applications look Metro-styled, even in Windows 7? (Window Chrome / Theming / Theme)
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+100
What I did was creating my own Window and Style. Because I like to have control over everything and I didn't want some external libr...
How can I export tables to Excel from a webpage [closed]
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+100
Far and away, the cleanest, easiest export from tables to Excel is Jquery DataTables Table Tools plugin. You get a grid that sorts,...
Python Infinity - Any caveats?
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100
Python's implementation follows the IEEE-754 standard pretty well, which you can use as a guid...
What does O(log n) mean exactly?
...t takes 1 second to compute 10 elements, it will take 2 seconds to compute 100 elements, 3 seconds to compute 1000 elements, and so on.
It is O(log n) when we do divide and conquer type of algorithms e.g binary search. Another example is quick sort where each time we divide the array into two pa...
Regular expression for floating point numbers
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+100
I don't think that any of the answers on this page at the time of writing are correct (also many other suggestions elsewhere on SO a...
Android应用开发性能优化完全分析 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...pace objects, 0(0B) LOS objects, 75% free, 23MB/95MB, paused 2.079ms total 100.522ms
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10-06 00:59:48.059 xxx I/art: Explicit concurrent mark sweep GC freed 4693(172KB) AllocSpace objects, 0(0B) LOS objects, 75% free, 23MB/95MB, paused 2.227ms total 101.692ms
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我们知道，类似上...