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Are unused CSS images downloaded?
...e="text/css">
.nonexistent {
background: url('index.php?foo');
}
</style>
</head>
<body>
<?php if(isset($_GET['foo'])) {
file_put_contents('test.txt', $_SERVER['HTTP_USER_AGENT']);
} ?>
</body>
</html>
If te...
What does @synchronized() do as a singleton method in objective C?
...
It declares a critical section around the code block. In multithreaded code, @synchronized guarantees that only one thread can be executing that code in the block at any given time.
If you aren't aware of what it does, then your application probably isn't multithreaded, ...
Is it possible to use a div as content for Twitter's Popover
... put a <div> inside the popover. Potentially, I would like to use php and mysql in there, but if i could get a div to work i think i can figure out the rest. I tried setting data-content to a div ID, but it didnt work.
...
How to position a table at the center of div horizontally & vertically
...op) # with Mootools
No vertical-align:middle is possible as a table is a block and not an inline element.
Edit
Here is a website that sums up CSS centering solutions: http://howtocenterincss.com/
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Bootstrap 3 modal vertical position center
...dia screen and (min-width: 768px) {
.modal:before {
display: inline-block;
vertical-align: middle;
content: " ";
height: 100%;
}
}
.modal-dialog {
display: inline-block;
text-align: left;
vertical-align: middle;
}
And adjust a little bit .fade class to make sure it appe...
Replacing H1 text with a logo image: best method for SEO and accessibility?
...pan></a>
</h1>
#logo a {
position:relative;
display:block;
width:[image width];
height:[image height]; }
#logo a span {
display:block;
position:absolute;
width:100%;
height:100%;
background:#ffffff url(image.png) no-repeat left top;
z-index:100; /* Pla...
Multiple Updates in MySQL
...ice for dynamic updating too. For example, I used that solution in loop in php: $commandTxt = 'UPDATE operations SET chunk_finished = CASE id '; foreach ($blockOperationChecked as $operationID => $operationChecked) $commandTxt .= " WHEN $operationID THEN $ope...
process.waitFor() never returns
...ou don't read from the appropriate streams. This means that the process is blocked as soon as the buffer is full and waits for your process to continue reading. Your process in turn waits for the other process to finish (which it won't because it waits for your process, ...). This is a classical dea...
How does StartCoroutine / yield return pattern really work in Unity?
... Indeed, here it is in MSDN – talking about something called ‘iterator blocks.’ So what’s going on?
Firstly, there’s this IEnumerator type. The IEnumerator type acts like a cursor over a sequence, providing two significant members: Current, which is a property giving you the element t...
Does anyone still use [goto] in C# and if so why? [closed]
...oblem as well, such as refactoring the code into a function, using a dummy block around it, etc. (see this question for details). As a side note, the Java language designers decided to ban goto completely and introduce a labeled break statement instead.
...