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What does “for” attribute do in HTML tag?
...t seems important to mention that it's very relevant for accessibility and screen readers, why actively use it.
– coyotte508
Jun 6 '16 at 2:15
1
...
pdftk compression option
...ifferently):
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dBATCH -dQUIET -sOutputFile=output.pdf input.pdf
Edit: I just discovered another option (for lossless compression), which avoids the nasty gs command. qpdf is a neat tool that converts PDFs (compression/...
How to fix: android.app.RemoteServiceException: Bad notification posted from package *: Couldn't cre
...escribed in Providing Density-Specific Icon Sets and Supporting
Multiple Screens, you should create separate icons for all generalized
screen densities, including low-, medium-, high-, and
extra-high-density screens. This ensures that your icons will display
properly across the range of devi...
为AppInventor2开发拓展(Extension) · App Inventor 2 中文网
...在线安卓开发环境，利用拖拽式的方式实现代码块堆叠，从而完成相应的逻辑。
上手很容易，但是由于代码块提供的功能有限，使用比较单一，在开发上有很大的局限性，但是它提供了拓展Extension特性，开放了源码，使得开发...
Hook up Raspberry Pi via Ethernet to laptop without router? [closed]
...
No router + no screen + regular Ethernet cable + RPI 2 + Raspbian Lite 2018-11-13 + Ubuntu 18.10
First we must enable the SSH server on the Pi, which is disabled by default for security.
If you already have a shell on the Pi through a non...
Responsive font size in CSS
...the 320 pixels width for wherever your design starts breaking:
@media only screen and (max-width: 320px) {
body {
font-size: 2em;
}
}
Viewport percentage lengths
You can also use viewport percentage lengths such as vw, vh, vmin and vmax. The official W3C document for this states:
T...
GridView VS GridLayout in Android Apps
... ListAdapter, the only data loaded in memory will be the one displayed on screen.
GridViews, much like ListViews reuse and recycle their views for better performance.
Whereas a GridLayout is a layout that places its children in a rectangular grid.
It was introduced in API level 14, and was recent...
What is the difference between visibility:hidden and display:none?
... would guess they are about the same. As soon as something changes on the screen the whole screen will re-render (at least it used to), and so it doesn't really matter. You're still forcing a screen repaint. This could very browser by browser though, and in truth there are probably better ways to ...
Programmatically set the initial view controller using Storyboards
...nary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:UIScreen.mainScreen.bounds];
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
UIViewController *viewController = // determine the initial view controller here and instantiate ...
How to use HTML to print header and footer on every printed page of a document?
...ple:
<div class="divFooter">UNCLASSIFIED</div>
CSS:
@media screen {
div.divFooter {
display: none;
}
}
@media print {
div.divFooter {
position: fixed;
bottom: 0;
}
}
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